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Understanding The File Number In Passport: A Simple Guide

TeamAckoSept 23, 2025

When we consider a passport, we all usually glance at the first page that contains our photo and information. But have you ever noticed the last page? It contains a small but significant code called the file number. For many individuals, it seems like a combination of numbers and letters, but it's the pillar of your passport application.

Knowing everything about the file number is vital if you are applying for a passport or expecting it to be delivered.

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Contents

What is a File Number in a Passport?
What Does the Passport File Number Consist of?
- Passport File Number Example
Where Do You Find the File Number in Passport?
Why is the File Number in a Passport Important?
What If You Lose the File Number of Passport?
How to Check Passport Status Using File Number?
Common Issues With the Passport File Number
Troubleshooting the Passport File Number: Steps to Fix Common Issues
How Does Travel Insurance Help With the Loss of a Passport?
Final Words
Frequently Asked Questions

What is a File Number in a Passport?

The file number is a 15-character code that the passport office gives you when you apply. Think of it as a reference number for your case. It helps the authorities keep track of your application and also allows you to check the status whenever you want.

Without this number, it would be nearly impossible to follow up on your application. So, while your passport may be the star of the show, the file number works quietly in the background to keep things moving.

What Does the Passport File Number Consist of?

• City/State Code: The first few letters represent the place where you applied. For example, “DEL” for Delhi, “MUM” for Mumbai.

• Year of Application: The number usually includes the year you submitted your form.

• Unique Application Digits: The rest of the code makes your application different from others.

Passport File Number Example

Here's a sample to help you understand:

MU23B4003725525

MU: City code for Mumbai
25: Year (2025)
B4003725525: Application-specific digits

This kind of structure is standard for a file number in an Indian passport.

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Where Do You Find the File Number in Passport?

Here’s how you can find your file number:

1. On Your Passport: Flip to the last page, and you’ll see it printed at the bottom.

2. Application Receipt: Whether you applied online or offline, the acknowledgement slip has the number.

3. Online Portal: Log into the Passport Seva website and check under “View Saved/Submitted Applications.”

Why is the File Number in a Passport Important?

The following are a few reasons why it is important.

• Track Status: Just like tracking a parcel online, you can check where your passport application has reached.

• Proof of Application: It acts as proof that your passport application is registered in the system.

• Quick Help: If you ever need to contact customer care or visit a Passport Seva Kendra, quoting your file number makes the process faster.

Read More: Passport Enquiry Guide

What If You Lose the File Number of Passport?

Don’t panic if you misplace your file number. Here’s how you can get it back:

• Check Email or SMS: Usually, the Passport Seva Kendra sends your file details to your registered email and phone.

• Log In Online: Head to the Passport Seva portal and retrieve it from your submitted applications.

• Visit the Kendra: If nothing works, walk into your regional Passport Seva Kendra and ask for help.

How to Check Passport Status Using File Number?

To track your application status with your file number in Passport:

Visit passportindia.gov.in
Click ‘Track Application Status’
Select the application type
Enter your passport file number and Date of Birth
Click submit to view your current passport status

If you’re wondering how I can check my passport application status without a file number, you can:

Use your Application Reference Number (ARN)
Call the toll-free helpline 1800-258-1800

Common Issues With the Passport File Number

Here are the most common problems applicants face with their passport file number and how to resolve them:

Incorrect File Number: Entering the wrong file number can prevent you from tracking your passport status.
Lost or Forgotten File Number: Misplacing the file number can block access to your application status.
File Number Not Recognised: The system does not accept your file number.

Also Read: How to Change Name on Your Passport: A Step-by-Step Guide

Troubleshooting the Passport File Number: Steps to Fix Common Issues

If you're having trouble with your passport file number, follow these simple troubleshooting steps:

Verify the File Number: Double-check for any typos or errors in the file number you entered.
Contact Passport Support: Visit the nearest Passport Seva Kendra or call customer service for help retrieving or verifying your file number.
Check Email or SMS Updates: Look through your registered email inbox or SMS messages for your file number or updates from the passport office.
Use Alternative Tracking Methods: If the file number isn’t working, try tracking your application using your Application ID, DOB, or registered mobile number on the Passport Seva website.

How Does Travel Insurance Help With the Loss of a Passport?

When you finally obtain your passport and travel overseas, don't forget that losing your passport while travelling is a nightmare. Besides delays, it would be expensive to obtain a duplicate in time. A reliable travel insurance policy pays for these expenses and even assists with medical issues or baggage loss. Certain companies like ACKO even simplify the claim process, which can be a huge relief when you're stressed.

Final Words

A file number in a passport might seem like a minor detail, but it works big for you in your application journey. So, now you know what file number means and how helpful it can be.

Frequently Asked Questions

Here are some commonly asked questions about the file number in a passport application.

What is file number in passport?

It’s a 15-character alphanumeric code to track your application.

Where is the file number in Indian passport?

It’s located on the last page, near the bottom.

Is the passport reference number and file number the same?

Yes, they’re often used interchangeably.

How many digits is a passport file number?

Typically, it has 15 alphanumeric characters.

Where is the file number in passport application form?

It's not printed directly. It’s generated after submission and payment.

Does the passport file number change?

No, your passport file number does not change once assigned. It remains the same throughout the processing of your application. However, if you apply for a new passport (e.g., due to renewal or reissue), a new file number will be assigned for that application.

How can I check my passport application status without a file number?

You can make a call on the National Call Centre's toll-free number, 1800-258-1800. A representative or AIVR will answer your call, and you can check your passport application status.