How to change the registered email and mobile number on Zerodha

The email ID and mobile number registered on your Zerodha account are where every contract note, statement, and login OTP is sent, so keeping them current matters as much as any bank or nominee detail. This guide is about those registered contact details, not an email held at your bank; Zerodha does not control a bank-side email, and a change there is made with the bank directly. For a resident individual whose mobile is linked to Aadhaar , both the email and the mobile can be changed inside the Kite app in a few minutes, with an in-person verification and an Aadhaar e-sign to confirm the request. This guide covers the online route step by step, the verification, the timeline and charges, and the cases that must go offline.

Conflict-of-interest disclosure. This guide is published by the WebNotes Editorial Team for informational purposes and is written independently. WebNotes operates a Zerodha account-opening referral programme, disclosed on the pages that carry the referral link; this guide does not carry it and earns no referral commission from the procedure described here.

Prerequisites

For the online route to work, confirm the following:

• You hold a resident individual Zerodha account, and your registered mobile is linked to Aadhaar , which the UIDAI e-sign uses to verify you.
• You have the Kite app installed and are logged in, because contact-detail changes are made in Kite rather than in Console .
• You can receive the OTP at the new email or mobile you are adding, since Zerodha sends a verification code there.
• Your camera works for the in-person verification , and your Aadhaar-linked mobile can receive the e-sign OTP.
• You understand that any two-factor setup tied to your old mobile, and any KYC records that reference the old contact detail, will now use the new one.

What you are changing, and what you are not

Zerodha stores a single registered email ID and a single registered mobile number against your trading and demat account. These are the account’s contact details. They are separate from the bank accounts you link for funds, and separate from any email your bank holds. Changing your Zerodha email or mobile does not touch your linked bank accounts , and changing a bank detail does not touch your Zerodha contact details. If your goal is to update where your bank sends its own alerts, that is a bank-side change; this guide handles only the email and mobile Zerodha uses.

The online route in Kite

A resident individual with an Aadhaar-linked mobile makes the change entirely within the Kite app. The path is your user ID, then Profile, then Manage account, where both the email and mobile fields appear with a pencil icon beside each. Tapping the pencil lets you enter the new detail, and Zerodha sends an OTP to that new email or mobile to confirm you control it. You then complete an in-person verification and e-sign the request with your Aadhaar and an OTP. The Procedure box near the top of this page is the canonical click path; the sections here explain the verification and the offline exceptions.

The in-person verification and Aadhaar e-sign

Two verification steps protect a contact-detail change, because the registered email and mobile are how Zerodha reaches you and how OTPs are delivered. The first is the OTP to the new detail, which proves you can receive messages there. The second is an in-person verification , a short webcam check that confirms it is really you making the change, followed by an Aadhaar e-sign where you enter your Aadhaar number and verify an OTP sent to your Aadhaar-linked mobile. Once both are done, the request is submitted. There is no charge for the update, and it is processed within 24 working hours, after which Zerodha sends a confirmation email.

When the change must be done offline

The online route is limited to resident individuals with an Aadhaar-linked mobile. Several categories cannot use it and must submit the change offline, on a signed form with the required proof. These are non-individual accounts, including companies, partnerships, LLPs, and HUFs; joint accounts, where the request needs the holders’ signatures; demat-only accounts; NRI clients and anyone with an international mobile number; and any account whose mobile is not linked to Aadhaar. In these cases an online attempt returns an error such as “email ID updation cannot be processed online, please initiate the request offline”. If your only barrier is an Aadhaar-unlinked mobile, linking Aadhaar to your mobile first restores the faster online route for this and other changes, such as a primary bank change .

What changes once the update is live

Once the new email or mobile is active, everything Zerodha sends by that channel moves to it. Your daily contract notes, the ledger and holding statements, and the funds and margin alerts start arriving at the new email. Login and transaction OTPs, and any two-factor prompts tied to the registered mobile, go to the new number. If you use the same email or mobile as a recovery contact for the Console or Kite login, that recovery path now uses the updated detail too. Your linked bank accounts, nominees, and holdings are untouched, because a contact-detail change is administrative and does not alter your bank links or your positions. It is worth sending yourself a test action, such as a login OTP, after the change confirms, so you know the new channel is working before you rely on it for a trade.

Why the verification is strict

The registered email and mobile are the two channels through which Zerodha both reaches you and authenticates you, so a change to either is a sensitive one. If someone could quietly redirect your OTPs and statements to their own contact details, they could work around your other protections. That is why the change layers an OTP to the new detail, an in-person verification, and an Aadhaar e-sign, rather than a single click. It is the same reasoning behind linking only a bank account in your own name and behind the in-person verification at account opening. Treat any OTP for a contact change as you would a payment OTP: never read it out to a caller, and be wary of anyone who asks you to change your registered mobile on their instruction, which is a common tactic in SIM-swap and account-takeover attempts.

What can go wrong

OTP not received at the new detail. If the OTP does not arrive at the new email, check spam and confirm the address is typed correctly; if it does not arrive at a new mobile, confirm the number is active and can receive SMS. Re-enter the detail and request the OTP again.

In-person verification fails. Poor lighting, a blocked camera, or a weak connection can fail the webcam check. Retry in good light with a stable connection and your face clearly visible.

Aadhaar e-sign OTP not received. The e-sign OTP goes to the mobile linked to your Aadhaar, not necessarily the new number you are adding. If it does not arrive, your Aadhaar-mobile link may be out of date, which you resolve with UIDAI before retrying.

Online blocked with an offline error. If Kite tells you the request must be initiated offline, your account falls into one of the offline-only categories above. Follow Zerodha’s offline process rather than retrying online.

Change not reflected after 24 working hours. If the new email or mobile is not active after 24 working hours, contact support.zerodha.com with your client ID and the date of the request.

See also

• How to link your first bank account on Zerodha
• How to change your primary bank account on Zerodha
• How to add a secondary bank account on Zerodha
• How to complete Zerodha KYC online
• How to complete the Zerodha in-person verification

References

1. UIDAI , “Aadhaar e-sign and OTP-based authentication,” uidai.gov.in.
2. SEBI , “Master circular on KYC norms for the securities market,” sebi.gov.in.
3. Reserve Bank of India , “Master Direction on Know Your Customer (KYC),” rbi.org.in.
4. Zerodha Support, “How do I change my contact details,” support.zerodha.com.