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ICICI FASTag Login with Mobile Number: Step-by-Step Guide

Passwords are the way of the old now; they are complex, slow and a pain to manage for someone who has a job and wants their services to just work. Well, not anymore…follow this beginner-friendly guide and experience the simplicity and convenience of ICICI FASTag login by means of your mobile number.

Priti Burud

Priti Burud

Published Jun 17, 2025 • Updated Sep 7, 2026 • 8 min read

ICICI FASTag Login with Mobile Number
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Have you ever gone out with your friends for an evening ride that turned into a full on road trip ? Well if you have, you’d agree when I say that there’s nothing quite like the freedom of a road trip that finds you spontaneously. One moment you’re navigating noisy city traffic, and the next you’re heading out for the famous ‘Jaipur Kachori’ on a quiet NH48

The open road feels so much more refreshing than anything back in the city, right up until you approach a busy toll plaza and realize your balance is on very thin ice, or worse, you’re sitting on the side of the road trying to go through that entire Forgot Password loop once again, half wishing you remember that 8 string password by a miracle which you know would not happen.

That’s usually when road-trip frustration kicks in. The traditional way of logging into accounts with passwords feels completely archaic when you’re on the move.

Thankfully, ICICI FASTag mobile number login fixes that entirely. Instead of digging through saved notes or resetting passwords, you simply enter your linked mobile number, verify the instant OTP, and you're in. It’s a straightforward system designed specifically for real life on Indian highways.

Further in this guide, we will explore how the ICICI Bank FASTag system works, how to navigate the mobile login on both the app and website and quick fixes for potential hiccups.

But before we get into all of that, let’s have a quick understanding of the ICICI FASTag.

What is ICICI FASTag and how does it work?

The ICICI FASTag as the name suggests is issued by the ICICI Bank for vehicles of ‘Class 4’ or above. And you can take advantage of the FASTag services provided by the bank and way more because the ICICI’s setup goes a step further by integrating payments for select fuel stations and parking lots.

‘On October 19 , 2019, it was announced that FASTag will be mandatory on all National Highways from December 01, 2019 and non-FASTag users will be charged double the toll.’

This policy of our government made it quite essential for car owners to know about FASTag and therefore, quoting Wikipedia “FASTag is an electronic toll collection system in India, operated by the National Highways Authority of India (NHAI). It employs Radio Frequency Identification (RFID) technology for making toll payments directly from the prepaid or savings account linked to it. The FASTag is affixed on the windscreen of the vehicle and enables one to drive through toll plazas without stopping for transactions”. The tag can be purchased from participating banks like ICICI Bank (in this case) and if it is linked to a prepaid account, then recharging or top-up can be as per requirement.

So as you drive through a toll plaza, scanners automatically deduct the required toll fee from your linked prepaid wallet meaning no full stops, no cash exchanges, and no searching for exact change

But why go for ICICI FASTag?

Some of its most convenient everyday features include:

  • Auto-Recharge: Automatically tops up your wallet whenever the balance dips below your designated threshold.
  • Instant SMS Alerts: Sends real-time notifications for every transaction so you can track expenditures instantly.
  • For Fuel or parking payments: Pay at select fuel stations and parking lots using ICICI FASTag without any hassle for cash.
  • Multi-Channel Access: Easily manage your account via the iMobile Pay app, the web portal, or WhatsApp Banking by messaging "Hi" to 86400 86400.
  • Round-the-Clock Support: Access 24x7 customer support by calling their helpline number whenever you run into issues on the road.

    Do note that for accessing a lot of banking and related services your registered mobile number is vital. It acts as the identity provider for authentication purposes just like you would use your Passport for verification for traveling abroad. It’s the single verified channel that receives your OTPs, security alerts, and balance warnings.

Thus by using this number for FASTag, you leverage a channel the bank already trusts, giving you an effortless balance of convenience and robust security.

How to do ICICI FASTag login: WhatsApp, app and web portal ?

There are primarily 3 major ways of accessing your existing ICICI FASTag account with your mobile number and the detailed instructions for each are listed below:

Via WhatsApp

  1. Save the ICICI Bank number i.e +91 86400 86400 in your contacts.
  2. Start a conversation by sending a ‘Hi’ to the aforementioned number.
  3. Accept their Terms & Conditions for use over WhatsApp.
  4. Choose your preference for receiving updates.
  5. Click on All Services and Select FASTag Services.
  6. And you’re all set.

Via ICICI Bank iMobile Pay App

  1. Launch or download the official iMobile Pay app from your phone's app store ( i.e Play Store for Android and App Store for iOS).
  2. Give the necessary permissions for SMS, Phone and Location.
  3. Select ‘Let’s Get Started’ by agreeing to the terms and conditions and it will prompt you to Login via Mobile Number.
  4. Enter the 10-digit mobile number registered with your FASTag account.
  5. Type in the One-Time Password sent to your SMS inbox.
  6. Set up your Login PIN and authenticate yourself with your preferred mode from the given options.
  7. At the home page, under the transact tab you will find the option for FASTag services.
  8. Jot down the login credentials somewhere safe for easy FASTag login online.

Via the Official FASTag Customer Portal

  1. Visit the ICICI FASTag Portal on your mobile or desktop browser.
  2. Choose Individual Login and click Login via Mobile Number.
  3. Type in your registered mobile number and complete the security captcha.
  4. Click Request OTP, enter the code upon arrival, and hit Login.
  5. Access any of the FASTag-related services.

A quick heads-up: While mobile OTP logins provide smooth sailing for everyday tasks like checking balances and topping up funds, ICICI Bank occasionally restricts certain high-level administrative changes for safety reasons. If you need to perform deep account reconfigurations, you may occasionally be prompted to enter a primary password or re-verify credentials. But if you’re still facing issues, here's how you can try

Common ICICI FASTag account login issues and troubleshooting measures

Navigating a new piece of technology and software can be challenging even for the tech savvy and especially for busy professionals who don’t want to spend hours figuring out how things work.

So, if something doesn’t work don’t get frustrated or disheartened. With patience most issues can be resolved easily.

Some common ICICI FASTag login errors and their solutions are as follows:

  • Not Receiving the OTP:

    • Verify Registration: Ensure you are entering the exact mobile number linked to your FASTag. To quickly verify if your current number is the one registered with the bank, give a missed call to 8010928888. If you instantly receive an SMS with your wallet balance, it is registered. If you receive nothing, the tag is likely linked to a different number.
      • Wait or Resend: Network delays can happen. Ensure your phone has a signal, disable Do-Not-Disturb (DND) settings temporarily, and wait for the countdown before clicking "Resend OTP."

  • "Mobile Number Not Found" Error

     - **Dealer or Previous Owner Setup:** If you recently purchased a new or pre-owned car, the dealer or previous owner may have registered the tag under their mobile number instead of yours, you may face this ICICI FASTag login issue.
     - Corporate Account Conflict: If your vehicle is owned by a corporate entity or registered under a business account, you cannot log in using a standard individual mobile number.
     - **Contact Customer Care:** You must contact customer care at 18002100104 or 18602670104 to verify your account details
  • Web Portal Won't Load

    • Use WhatsApp Banking: You can perform major account tasks (like uploading your Registration Certificate or checking balances) without visiting the portal. Simply save +91 86400 86400 in your contacts and send "Hi" from your registered mobile number
      • Use the iMobile Pay App: If you are an ICICI Bank customer, skip the web login. All FASTag management features are built directly into the iMobile Pay app under the 'Payments & FASTag' section.

And before you hit the road for your next trip, keep these things in mind:

  • Ensure your linked mobile line remains active and ready to receive SMS alerts.
  • Beware of any SMS forwarding apps that scammers might try to download into your phone.

Concluding Thoughts

ICICI FASTag mobile number turns what used to be an annoying road-trip chore into something you never have to worry about again. Moreover because single-use security codes link directly to your physical SIM card, remote attackers can't touch your portal. So the next time you feel the pull of the open highway, you won't need to hunt down old passwords, just grab your phone, verify your code, and enjoy the trip. Safer travels, Park+

Priti Burud
Priti Burud

Content Writer

LinkedIn

As a passionate content writer, Priti specializes in covering the latest trends in the automotive industry. Priti avidly explores the mobility sector, staying updated on technological advancements. Her enthusiasm for cars drives me to research extensively, brainstorm ideas, and craft engaging content that showcases the latest developments worldwide. Whether it's unveiling cutting-edge technology or analyzing industry shifts, she is dedicated to providing informative and insightful content for automotive enthusiasts and tech aficionados alike.

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FAQs- ICICI FASTag Login with Mobile Number

My OTP hasn’t arrived yet. What am I supposed to do?

Don’t worry, just think of it as a little traffic jam - but for your network. Simply, give it a minute, or try toggling your internet connection and requesting it again.

Why is it saying my mobile number doesn’t match?

Double check that you are entering the same mobile number you registered during the setup process. Even a single wrong digit can cause the mismatch.

What to do in case the app keeps freezing?

Try closing and reopening the app first, if the problem persists, try clearing the cache or checking if there’s an update available.

Is it really safe to log in without a password?

Yes, as long as you keep your OTP private. The OTP is temporary and can be used once, so never share it with anyone. And, of course, make sure you’re logging in only through the official ICICI FASTag website, app or WhatsApp number.

Can I use my ICICI FASTag anywhere else besides toll plazas?

Yes, FASTags doesn’t just help you glide through toll gates - it can also make payments automatically at selected parking lots and fuel stations, depending on the available services.

What if a toll fee gets deducted twice by mistake?

Rather than panicking, simply check your transaction history on the portal to confirm whether the amount has been deducted twice. If it has, get in touch with ICICI customer care at 1800 2100 104 or fastag.support@icicibank.com to raise an instant reversal request.

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