How to Fill SIR Form Online: Step-by-Step Guide for Beginners (2025)

The Election Commission of India has made the Special Intensive Revision process completely digital, allowing eligible voters to update their electoral details from home. This comprehensive guide will walk you through every step of filling your SIR form online, from understanding what it is to downloading your final acknowledgement receipt.​

The SIR enumeration form is now mandatory for all existing voters in all states and Union Territories across India, with a qualifying date of January 1, 2026. Unlike traditional offline methods, the online SIR system requires Aadhaar-based e-sign verification and mobile number linkage with your EPIC (Voter ID) for successful submission. Whether you’re a first-time applicant or updating existing voter details, this beginner-friendly guide covers everything you need to know about the SIR registration process.

What is SIR Form?

SIR stands for Special Intensive Revision. It is a verification form released by the Election Commission of India (ECI).

• Full Form: Special Intensive Revision Enumeration Form.
• Purpose: To link your current Voter ID (EPIC) with “Legacy Data” (voter lists from 2002, 2003, or 2005 depending on your state) to confirm your residency and lineage.
• Who Needs to Fill It: Every registered voter in India whose state is undergoing the SIR exercise. If you do not fill this, your name might be marked for verification or deletion.

Important Note: The SIR Form is not for new voter registration (Form 6). It is for existing voters to verify their details.

Full Form of SIR: Special Intensive Revision (SIR)​

The SIR form, officially known as the Special Intensive Revision enumeration form, is a nationwide exercise undertaken by the Election Commission of India to ensure accurate and updated electoral rolls. This process aims to include all eligible Indian citizens in the voter list while removing ineligible, deceased, or duplicate entries.

Purpose of SIR Form

The Election Commission conducts SIR for three primary objectives:​

• Add new eligible voters – Especially those turning 18 years old by the qualifying date (January 1, 2026).
• Remove ineligible entries – Including deceased voters, duplicates, and those who have shifted to different constituencies.
• Correct existing voter details – Update names, addresses, photos, and other personal information to ensure accuracy.

Who Needs to Fill SIR Form?

Every registered voter in the following 12 states and Union Territories must fill the SIR enumeration form:​

SIR Form Online Tamil Nadu – All existing voters in Tamil Nadu must submit the enumeration form​

SIR Form Online Uttar Pradesh – Mandatory for all UP voters on the electoral roll as of October 27, 2025​

SIR Form Online West Bengal – Required for all registered voters in West Bengal​

SIR Form Online Kerala – All Kerala voters must complete the SIR process

SIR Form Online Gujarat – Applicable to all Gujarat voters

SIR Form Online Madhya Pradesh – Mandatory for MP voters​

SIR Form Online Rajasthan – Required for all Rajasthan voters

SIR Form Online Chhattisgarh – Applicable to Chhattisgarh voters

SIR Form Online Goa – Mandatory for Goa voters

Additionally, the exercise covers Puducherry, Andaman & Nicobar Islands, and Lakshadweep.

Eligibility Criteria for SIR Form 2025

To fill the SIR form online, you must meet these requirements:​

• Age: Must be 18 years or above as of January 1, 2026 (qualifying date)
• Citizenship: Must be an Indian citizen
• Residency: Must be ordinarily residing in one of the 12 states/UTs where SIR is being conducted
• EPIC Linkage: Your mobile number must be linked to your EPIC (Voter ID) number for online submission
• Aadhaar: Must have an active Aadhaar card for e-sign verification
• Name Matching: Name on EPIC must exactly match the name on your Aadhaar card for successful e-sign

Important Note: If your mobile number is not linked to your EPIC, you must first update it by submitting Form 8 before proceeding with the online SIR form.

Documents Required for SIR Form Online

For Existing Voters (Updating Details)

• EPIC Number (10-digit Voter ID number)​
• Active mobile number linked to EPIC​
• Aadhaar card for e-sign verification​
• Recent passport-size color photograph (white background)​
• Address proof (if updating address): Ration card, utility bills, Aadhaar, passport, bank passbook

For New Voters (First-Time Registration)

• Age Proof (any one):​
  • Birth certificate
  • Matriculation/10th standard certificate
  • Aadhaar card
  • Passport
  • PAN card
  • Driving license
• Address Proof (any one):​
  • Aadhaar card
  • Passport
  • Ration card
  • Bank passbook/statement
  • Utility bills (electricity, water, gas)
  • Rent agreement
  • Property documents
• Identity Proof:​
  • Aadhaar card
  • Passport
  • Voter ID (if any)
  • Government employee ID card
  • Pension payment order
• Recent passport-size photograph (specifications: white background, clear face, open eyes)

Document Specifications

Photo Requirements:

• Format: JPG/JPEG
• Size: Less than 50 KB (typically)
• Dimensions: Passport size (recent photograph)
• Background: White or light-colored
• Quality: Clear, face visible, no sunglasses or caps

Document Upload Format:

• PDF or JPG format
• File size: Usually less than 200 KB per document
• Clear and readable scans

Official Website for SIR Form Online

National Portal

The primary official website for SIR form submission is managed by the Election Commission of India:​

Voters’ Service Portal: The national ECI portal (voters.eci.gov.in) provides access to fill enumeration forms online for all states

ECI Main Website: The official ECI website (eci.gov.in) contains notifications, guidelines, and links to state-specific portals

State-Wise CEO Websites

Each state has its dedicated Chief Electoral Officer (CEO) website with SIR-specific information:​

• CEO Tamil Nadu: elections.tn.gov.in​
• CEO West Bengal: ceowestbengal.wb.gov.in​
• CEO Kerala: ceo.kerala.gov.in
• CEO Uttar Pradesh: ceouttarpradesh.nic.in
• CEO Gujarat: ceo.gujarat.gov.in
• CEO Madhya Pradesh: ceomadhyapradesh.nic.in
• CEO Delhi: ceodelhi.gov.in​
• CEO Goa: ceogoa.nic.in

Security Alert: Always verify that the website URL ends with “.gov.in” before entering any personal information or documents. Avoid third-party websites claiming to process SIR forms.

Step-by-Step Process to Fill SIR Form Online (Detailed Guide)

Step 1: Link Mobile Number to EPIC (Prerequisite)

Before filling the SIR form online, ensure your mobile number is linked to your EPIC:​

1.1 Visit the Voters’ Service Portal
1.2 Click on “Sign Up” or “Register”
1.3 Enter your mobile number, email ID, and captcha code​
1.4 Verify your mobile number using the OTP sent to your phone
1.5 After verification, log in and enter your EPIC number
1.6 Complete the linking process by verifying details

💡 Pro Tip: If your mobile is not linked, you must submit Form 8 to update mobile number before proceeding with online SIR submission.​

Step 2: Access the SIR Form Portal

2.1 Open your web browser (Chrome, Firefox, Safari recommended)

2.2 Visit the Voters’ Service Portal or your state’s CEO website

2.3 Look for the “Services” section on the homepage​

2.4 Click on “Fill Enumeration Form” or “SIR Form Online” option

2.5 Select your state from the dropdown menu​

Mobile Users: The portal is mobile-friendly and can be accessed through smartphones as well

Desktop Users: For better form-filling experience with document uploads, desktop/laptop is recommended

Step 3: Login with EPIC Number

3.1 On the login page, enter your 10-digit EPIC number (Voter ID number)​

3.2 The system will auto-fetch your existing voter details from the database​

3.3 An OTP will be sent to your registered mobile number

3.4 Enter the OTP within the time limit (usually 3-5 minutes)

3.5 Click “Verify and Proceed”

⚠️ Common Issue: If OTP doesn’t arrive, check your mobile number linkage and network connectivity. Wait 2 minutes before requesting a new OTP.

Step 4: Select Your Category

The portal will ask you to choose one of three categories:​

Option A: Your name existed in the previous SIR roll (2002 or later)

• System displays your previous details automatically
• Verify and confirm the information

Option B: Your name didn’t exist, but your parents’ names appeared in the previous roll

• Enter your parent’s EPIC number or details
• Provide relationship proof

Option C: Neither your name nor your parents’ names appeared on the list

• Select a relative whose name is on the electoral roll
• Provide relative’s details and relationship

🔍 Important: Many applicants make mistakes here by filling the wrong columns. Read the instructions carefully before selecting your category.​

Step 5: Fill Personal Details

The enumeration form contains several sections. Fill each field carefully:

5.1 Basic Information

Full Name (in English):

• Enter exactly as per your identity documents
• Use capital letters
• No special characters or numbers

Full Name (in Regional Language):

• Optional but recommended
• Use your state’s official language

Father’s/Mother’s/Husband’s Name:

• Enter complete name
• Select relationship from dropdown

5.2 Date of Birth

• Enter in DD/MM/YYYY format
• Must show age 18+ as of January 1, 2026
• Cross-verify with your age proof document

5.3 Gender

• Select Male/Female/Third Gender from dropdown

5.4 Contact Information

Mobile Number:

• Enter 10-digit active mobile number
• This should be the same number linked to EPIC
• Will be used for all future communications

Email ID (Optional but Recommended):

• Enter active email address
• Used for acknowledgement and updates

5.5 Current Address

House/Building Number:

• Enter exact house/flat number

Street/Road Name:

• Provide complete street or lane name

Locality/Area:

• Enter your locality or area name

Landmark (Optional):

• Add nearby landmark for easy identification

Village/Town/City:

• Enter as per your address proof

PIN Code:

• Must be valid 6-digit code
• Auto-fills district and state in some portals

District:

• Select from dropdown or auto-filled

State:

• Auto-selected based on portal you’re using

5.6 Category Selection (If Applicable)

• General
• Scheduled Caste (SC)
• Scheduled Tribe (ST)
• Other Backward Class (OBC)

Step 6: Upload Recent Photograph

6.1 Click on the “Upload Photo” button​

6.2 Select your passport-size color photograph (saved on device)

6.3 Ensure photo meets specifications:

• White or light background
• Face clearly visible
• Eyes open, neutral expression
• No caps, sunglasses, or heavy filters
• File size: Less than 50 KB
• Format: JPG/JPEG

6.4 Click “Upload” and wait for confirmation message

6.5 Preview the uploaded photo to ensure clarity

💡 Pro Tip: Take a fresh photo with your smartphone against a white wall, crop to passport size using free apps, and compress if needed before uploading.

Step 7: Upload Supporting Documents (If Required)

For new voters or those updating information:​

7.1 Click “Upload Documents” section

7.2 Select document type from dropdown:

• Age Proof
• Address Proof
• Identity Proof

7.3 Choose file from your device (PDF or JPG)

7.4 Ensure file size is within limit (usually 200 KB)

7.5 Upload each required document separately

7.6 Verify all uploads show “Successfully Uploaded” status

Step 8: Review and Preview

8.1 After filling all details, click “Preview” or “Review Form”​

8.2 The system generates a complete preview of your enumeration form

8.3 Carefully verify every detail:

• Name spelling
• Date of birth
• Address accuracy
• Mobile number
• Uploaded photo quality
• Document attachments

8.4 If any error found, click “Edit” to make corrections

8.5 Re-preview after making changes

⚠️Warning: Once submitted with e-sign, you cannot edit the form easily. Some corrections may require contacting your BLO (Booth Level Officer).​

Step 9: Submit with Aadhaar E-Sign

9.1 After confirming all details are correct, click “Submit with E-Sign”​

9.2 You’ll be redirected to Aadhaar e-sign portal

9.3 Enter your 12-digit Aadhaar number

9.4 Ensure the name on Aadhaar exactly matches your EPIC name​

9.5 Click “Request OTP”

9.6 Enter the OTP sent to your Aadhaar-linked mobile number

9.7 Complete the e-sign authentication

9.8 System validates and processes your signature

9.9 You’ll be redirected back to the SIR portal

🔐 Security Note: The Aadhaar e-sign is legally valid and ensures that only you can submit your form.​

Step 10: Declaration and Final Submission

10.1 Read the declaration statement carefully

10.2 Check the box “I hereby declare that the information provided is true and correct”

10.3 Click “Final Submit”

10.4 Wait for the submission confirmation message

10.5 Note down your Application Reference Number/Acknowledgement Number

10.6 You’ll receive confirmation SMS and email (if provided)

✅ Success Indicator: A green confirmation message with acknowledgement number confirms successful submission.

How to Upload Documents Properly for SIR Form

Before Uploading:

• Scan documents in good lighting
• Ensure text is clearly readable
• Remove shadows and blur
• Keep file size under 200 KB
• Use PDF or JPG format only
• Name files clearly (e.g., “Age_Proof.pdf”, “Address_Proof.jpg”)

During Upload:

• Select correct document category from dropdown
• Upload one document at a time
• Wait for “Upload Successful” message before proceeding
• Don’t refresh page during upload
• Verify thumbnail preview after upload

Photo Upload Checklist:

• Recent photograph (taken within last 3 months)
• White or light-colored plain background
• Face occupies 70-80% of frame
• No shadows on face
• Eyes open and clearly visible
• No sunglasses, caps, or filters
• Proper lighting (avoid overexposure or darkness)
• JPG/JPEG format only
• File size: 20-50 KB

Common Upload Errors and Solutions:

Error Message	Solution
File size too large	Compress image using online tools or photo apps
Invalid file format	Convert to JPG or PDF format
Upload failed	Check internet connection and retry
Document not clear	Re-scan with better lighting and focus
Photo rejected	Ensure white background and proper framing

How to Pay Application Fee (If Applicable)

Currently, there is no application fee for filling the SIR enumeration form online. The entire process is free of cost and conducted by the Election Commission of India at no charge to voters.​

⚠️ Fraud Alert: Be cautious of websites or agents demanding money to fill SIR forms. The official ECI portal and state CEO websites do not charge any fee.

How to Check SIR Application Status

Online Status Check Method

Method 1: Through Voters’ Service Portal

Step 1: Visit the Voters’ Service Portal

Step 2: Click on “Track Application Status” or “Check Status”​

Step 3: Select form type as “SIR Enumeration Form” or “Special Revision”

Step 4: Enter your Application Reference Number or EPIC Number

Step 5: Enter registered mobile number

Step 6: Click “Track Status”

Step 7: View current status:

• Form Submitted
• Under Verification by BLO
• Approved/Pending
• Documents Required
• Rejected (with reason)

Method 2: Through State CEO Website

Visit your state’s CEO website and look for “SIR Status” or “Application Tracking” section with similar steps as above.

Method 3: SMS Status Check

Some states provide SMS-based tracking:

• Send SMS in format: STATUS [EPIC Number] to the designated number (check your state CEO website)

Method 4: Through BLO Contact

Contact your assigned Booth Level Officer (BLO) whose details are available on the CEO website or your enumeration form.

Status Verification Timeline

• Immediate (0-1 day): Form Submitted confirmation​
• 3-7 days: BLO verification begins
• By December 4, 2025: Enumeration period ends​
• December 9, 2025: Draft electoral roll published​
• December 9, 2025 – January 8, 2026: Claims and objections period​
• February 7, 2026: Final electoral roll publication​

How to Download Acknowledgement/Receipt

Immediate Download After Submission

Step 1: After successful form submission, an acknowledgement page appears

Step 2: Click “Download Acknowledgement” or “Print Receipt” button

Step 3: PDF file downloads automatically to your device

Step 4: Save this PDF in a secure location

Step 5: Take printout for your records (recommended)

Download Later

If you missed downloading immediately:

Step 1: Log in to the Voters’ Service Portal

Step 2: Go to “My Applications” or “Application History”

Step 3: Find your SIR form submission

Step 4: Click on “Download Acknowledgement” option

Step 5: Enter EPIC number and application reference number

Step 6: Download the PDF receipt

What Information Does Acknowledgement Contain?

• Application Reference Number
• Applicant’s Name and EPIC Number
• Date and Time of Submission
• Application Type (SIR Enumeration)
• Submitted Details Summary
• Status: Submitted Successfully
• Next Steps and Timeline
• BLO Contact Information

💾 Important: Keep both digital and physical copies of acknowledgement for future reference and verification.​

Common Mistakes to Avoid

Top Errors Applicants Make

1. Filling Wrong Category Columns
Many voters whose names are not on the 2002 list incorrectly fill columns meant for voters already on the list. Read category descriptions carefully before selecting.​

2. Mobile Number Not Linked to EPIC
Attempting online submission without first linking mobile to EPIC leads to failed submissions. Complete Form 8 linkage before starting.​

3. Name Mismatch Between Aadhaar and EPIC
The e-sign fails if your Aadhaar name doesn’t exactly match your EPIC name. Get name correction done before applying online.​

4. Using Correction Fluid or Overwriting (Offline Forms)
BLOs reject forms with cutting, overwriting, or whitener marks. Start fresh if you make an error on paper forms.​

5. Poor Quality Photo Upload
Blurry, dark, or improperly framed photos get rejected. Follow photo specifications strictly.​

6. Incorrect Relative Information
Providing wrong parent or relative details when their names should be on electoral roll causes verification delays.

7. Multiple Form Submissions
Submitting the form multiple times creates duplicate entries and confusion. Submit only once.

8. Missing OTP Validity Period
Not entering OTP within time limit requires starting the process again. Keep mobile handy during form filling.

9. Incomplete Address Details
Vague or incomplete addresses delay BLO verification. Provide complete, accurate address with PIN code.

10. Not Reading Instructions
Rushing through without reading field-specific instructions leads to errors. Take time to understand each section.

Important Tips for First-Time Applicants

Before You Start

✓ Verify EPIC-Mobile Linkage: Confirm your mobile is linked days before deadline​

✓ Check Name Matching: Ensure Aadhaar and EPIC names match exactly​

✓ Prepare Documents: Keep all required documents scanned and ready

✓ Take Fresh Photo: Prepare a proper passport-size photo meeting all specifications

✓ Stable Internet: Use reliable internet connection to avoid form timeouts

✓ Keep Aadhaar Accessible: Have Aadhaar card ready for e-sign OTP

During Form Filling

✓ Use Desktop for First Time: Easier navigation and document upload on larger screens

✓ Fill Slowly and Carefully: Don’t rush; each field matters

✓ Save Draft if Available: Some portals allow saving progress

✓ Cross-Check Spellings: Verify name, father’s name spelling multiple times

✓ Use English for Name: Even if regional language option exists, fill English name correctly

✓ Accurate DOB: Enter date of birth exactly as per your age proof

✓ Complete Address: Include house number, street, landmark, area, PIN code

After Submission

✓ Download Acknowledgement Immediately: Don’t wait; download PDF right away

✓ Take Screenshot: Capture submission confirmation screen

✓ Note Reference Number: Write down application reference number

✓ Check Email/SMS: Verify you received confirmation message

✓ Track Status Regularly: Monitor application status every 3-4 days

✓ Cooperate with BLO: Respond promptly if BLO contacts for verification​

✓ Check Draft Roll: Verify your name appears in draft electoral roll on December 9, 2025​

Mobile vs Desktop Filling Guide

Aspect	Mobile Phone	Desktop/Laptop
Form Navigation	May require more scrolling	Better overview of entire form
Document Upload	Camera option available	Must have scanned files ready
Photo Capture	Can take live photo directly	Need pre-captured photo file
Typing Comfort	On-screen keyboard	Physical keyboard easier
Internet Stability	May depend on mobile data	Generally more stable connection
Multi-tasking	Difficult to reference documents	Can open multiple windows
Recommendation	Suitable for experienced users	Better for first-time applicants

Troubleshooting Section

Failed Submission Issues

Problem: Form shows “Submission Failed” after clicking submit

Solutions:

• Check internet connectivity and retry
• Clear browser cache and cookies
• Try different browser (Chrome recommended)
• Ensure all mandatory fields are filled with red asterisk (*)
• Verify file upload sizes are within limit
• Try during non-peak hours (early morning or late evening)

Problem: “Session Timeout” error appears

Solutions:

• Don’t keep form idle for more than 10-15 minutes
• Complete one section at a time continuously
• Have all documents ready before starting
• Re-login and start fresh if session expires
• Use faster internet connection

OTP Issues

Problem: OTP not received for EPIC login

Solutions:

• Verify mobile number is correctly linked to EPIC​
• Check mobile network connectivity
• Wait 2-3 minutes before requesting new OTP
• Check SMS inbox and spam folder
• Ensure mobile number is active and not on DND for transactional SMS
• Try alternate verification method if available

Problem: Aadhaar e-sign OTP not arriving

Solutions:

• Confirm Aadhaar-linked mobile number is active
• Check if you’ve exhausted daily OTP limit (usually 3-5 attempts)
• Try after 30 minutes if multiple failed attempts
• Ensure mobile has network coverage
• Contact Aadhaar helpline if persistent issue

Document Upload Errors

Problem: “File size too large” error

Solutions:

• Compress images using online tools (TinyPNG, CompressJPEG)
• Reduce PDF size using PDF compressor tools
• Take photo in lower resolution if using smartphone
• Crop unnecessary margins from scanned documents

Problem: “Invalid file format” error

Solutions:

• Convert documents to JPG or PDF only
• Don’t upload HEIC, PNG, or other formats
• Use online converters if needed (HEIC to JPG, PNG to JPG)
• Re-scan documents if quality is poor after conversion

Problem: Photo gets rejected after upload

Solutions:

• Ensure white or light background (no patterns)
• Remove shadows by using natural lighting
• Center your face properly in frame
• Avoid filters, beauty modes, or editing
• Ensure image is recent (within 3 months)
• Try different photo altogether if repeated rejection

Name Mismatch Errors

Problem: E-sign fails due to name mismatch between EPIC and Aadhaar

Solutions:

• First get name correction done on EPIC or Aadhaar (whichever has error)
• Submit Form 8 for EPIC name correction
• Visit Aadhaar center for Aadhaar name update
• Wait for correction to reflect in system (7-15 days)
• Then proceed with online SIR form​

Alternative:

• If online method fails due to name mismatch, submit offline enumeration form through BLO​

Application Status Not Showing

Problem: Unable to track application status

Solutions:

• Wait 24-48 hours after submission for status to update
• Verify you’re using correct Application Reference Number
• Check on both national portal and state CEO website
• Use EPIC number instead of reference number if option available
• Contact BLO directly with acknowledgement proof

Form Correction After Submission

Problem: Realized mistake after submitting form

Solutions:

• Cannot edit online after e-sign submission
• Contact your BLO immediately with acknowledgement​
• Submit objection/correction during claims period (Dec 9, 2025 – Jan 8, 2026)​
• Provide corrected information with supporting documents to BLO
• May need to fill fresh form in some cases