How-to demat frozen inactive mobile unfreeze demat update mobile zerodha TRAI inactive number mobile email validation

How to unfreeze a Zerodha demat account frozen for an inactive mobile number

From WebNotes, a public knowledge base. Last updated . Reading time ~9 min. Level: Beginner.

If your Zerodha demat account is frozen because your registered mobile number went inactive, you unfreeze it by updating the number at console.zerodha.com/account: click the edit icon next to your mobile number, enter a new active number, verify it via OTP, then complete the in-person verification and the Aadhaar eSign. The account unfreezes automatically within 48 working hours once Zerodha updates its records. There is no separate unfreeze request and no charge for the fix.

The freeze is a protection, not a penalty. Zerodha freezes a demat account when its registered mobile appears on TRAI’s list of inactive or disconnected numbers, because a disconnected number can be reassigned to a stranger who would then receive your OTPs and alerts. SEBI requires every demat account to carry an active mobile number so that OTPs and trade alerts reach only the account holder. While the account is frozen you cannot sell stocks or make off-market transfers , and you stop getting SMS alerts when shares are credited. The fix is to put a working number on record and verify it. This guide walks the Console update, explains the IPV and eSign steps, and covers the case where your number is actually fine and the email can be ignored.

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.

Step-by-step procedure

The numbered box at the top of this guide gives the sequence. The detail below expands the Console update and the verification steps, and handles the case where no action is actually needed.

1. Confirm the freeze is due to the mobile number

Read the email Zerodha sent. A freeze triggered by an inactive mobile says so explicitly, and it is distinct from the other demat-freeze reasons such as incomplete KYC or an inoperative PAN, which need different fixes. If your number still works and you receive all your communications, Zerodha’s note says you can ignore the email; TRAI’s inactive list sometimes flags a number you still use, for example after a brief porting or disconnection. If your debit-side actions are blocked, treat the freeze as real and update the number.

2. Open the Console account page

Log in at console.zerodha.com and open console.zerodha.com/account. This is the same page that shows your registered mobile, email, bank and demat details . Find your mobile number and click the edit icon next to it to start the update. The mobile-update flow for this freeze runs through Console, so use Console rather than the Kite app for this specific change.

3. Enter and verify the new number

Enter your new, active mobile number and verify it through the OTP sent to that number. Use a number that is in your name and currently active, not a temporary or shared line, because the same number anchors your trade alerts and login OTPs going forward. If the OTP does not arrive, check that the number is not on DND for transactional messages and that it has signal, then resend.

4. Complete IPV and eSign

After the number is verified, finish the in-person verification, a short selfie or video step that confirms you are the account holder, and the Aadhaar eSign that authorises the modification. The IPV is the same camera-based check used elsewhere in Zerodha’s KYC flow; if the camera does not start, see how to enable the camera for IPV . The eSign uses an OTP sent to the mobile linked to your Aadhaar, so keep that phone to hand.

5. Wait for the automatic unfreeze

Once you have submitted the verified number with IPV and eSign, you are done. The account unfreezes automatically within 48 working hours of Zerodha updating its records. You do not raise a separate unfreeze ticket; the verified mobile update is what lifts the freeze. If the account is still frozen after 48 working hours, raise a ticket so support can check whether a second freeze reason is also in play.

Why an inactive mobile freezes the demat

The freeze sits at the intersection of a telecom rule and a securities rule. On the telecom side, TRAI maintains a list of inactive and disconnected numbers, and a disconnected number is eventually reassigned to a new subscriber. On the securities side, SEBI requires a demat account to carry an active mobile number and email so that OTPs and transaction alerts reach only the genuine holder. Put the two together and a disconnected number on a live demat is a real exposure: the OTPs and alerts that guard your holdings could land on a stranger’s phone. Freezing the debit side of the account, blocking sells and off-market transfers , removes that exposure until a working number is on record.

This is part of the broader contact-validation regime that runs across the KYC chain. The same logic drives the KRA email and SMS validation that confirms your registered contact details, and the requirement that your email and mobile stay current is why a lapsed number triggers a freeze rather than a quiet flag.

The wider mobile and email validation rule

SEBI and the depositories run a continuous validation of the mobile number and email on every demat account, because those two fields are the security perimeter for the holding. The KYC Registration Agencies send validation emails and SMS to confirm the contact details are reachable and belong to the holder. If the email bounces or the mobile is on TRAI’s inactive list, the contact fails validation, and a failed validation on the mobile is what produces this specific freeze. Keeping both current is the simplest preventive: update the mobile number or email the moment either changes, rather than waiting for a freeze. The reasons a demat can be frozen, of which the inactive mobile is one, are catalogued in why a Zerodha demat account gets frozen .

When you also need a re-KYC

If the freeze email lists more than the mobile number, an incomplete KYC attribute, an inoperative PAN, or a contact-detail mismatch, updating the mobile alone will not lift it. In that case run the full re-KYC flow, which steps through contact details, profile, address and bank, and the KYC status check tells you which attributes are flagged. A pure inactive-mobile freeze needs only the mobile update in this guide; a KYC-deficiency freeze needs the re-KYC. Read the email to tell which one you have before you start.

See also

External references

References

  1. Zerodha support, How to unfreeze a demat account frozen due to an inactive mobile number? (TRAI inactive list; SEBI active-number requirement; update at console.zerodha.com/account via edit icon, OTP, IPV and eSign; automatic unfreeze within 48 working hours; ignore the email if the number is active) (as of 20 June 2026).
  2. Zerodha support, Why is my demat account frozen? (inactive mobile among the listed freeze reasons; sells and off-market transfers blocked while frozen) (as of 20 June 2026).
  3. SEBI circulars on mandatory active mobile number and email for demat accounts, ensuring OTPs and alerts reach the holder.
  4. CDSL operating instructions on contact-detail validation for beneficial owner accounts.
  5. TRAI guidelines on disconnected and reassigned mobile numbers underpinning the inactive-number freeze.

WebNotes Editorial Team prepares factual how-to guides based on publicly available regulatory documents and broker disclosures. WebNotes is not affiliated with Zerodha Broking Limited. Procedures and timelines are subject to change; verify current requirements at support.zerodha.com before acting.

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Frequently asked questions

Why is my Zerodha demat account frozen due to an inactive mobile number?
Zerodha freezes your demat when your registered mobile appears on TRAI’s inactive or disconnected list, because a disconnected number can be reassigned to someone else and expose your holdings. SEBI also requires an active number so OTPs and trade alerts reach only you.
How do I unfreeze a Zerodha demat frozen for an inactive mobile?
Go to console.zerodha.com/account, click the edit icon next to your mobile number, enter a new active number and verify via OTP, then complete the IPV and eSign. The account unfreezes automatically within 48 working hours of Zerodha updating its records.
How long does it take to unfreeze the account?
The account unfreezes automatically within 48 working hours once Zerodha updates its records with your new mobile number. You do not raise a separate unfreeze request; updating the verified number triggers the unfreeze.
What can I not do while my demat is frozen for this reason?
While frozen you cannot sell stocks or make off-market transfers, and you stop receiving SMS alerts for stock credits. Buying may still work, but the freeze blocks debit-side actions on your holdings until the mobile number is updated and verified.
Does unfreezing the demat cost anything?
No. Updating the mobile number to clear an inactive-number freeze carries no charge. You only need an active mobile number in your name, your Aadhaar for the eSign, and a few minutes for the IPV step.
My number still works, why did I get the freeze email?
TRAI’s inactive list can flag a number that you still use, for instance after a brief disconnection or porting. If your number is active and you receive all communications, you can ignore the email. If actions are blocked, update the number to be safe.
Can I update the mobile number from the Kite app instead?
The mobile-update flow for this freeze runs through Console at console.zerodha.com/account, using the edit icon next to your number, then OTP, IPV and eSign. Use Console rather than Kite for this specific change to ensure the verified update reaches Zerodha’s records.

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