How-to TPIN CDSL

How to regenerate CDSL T-PIN

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Regenerating a CDSL T-PIN is the standard recovery / refresh procedure used when you’ve forgotten your current T-PIN, suspect it might be compromised, or simply want a new one. The flow is the same as the “forgot T-PIN” recovery.

Conflict-of-interest disclosure. This guide is published by WebNotes Editorial Team for informational purposes. WebNotes has no commercial relationship with Zerodha or CDSL.

Step-by-step procedure

Six steps per the procedure infobox. The notes below cover when to regenerate and the security implications.

When to regenerate

  • Forgot the current T-PIN.
  • Suspect it has been compromised (phishing attempt, social engineering).
  • Long time since last refresh (good hygiene to refresh annually).
  • Mobile number changed and old T-PIN is on the previous number.

CDSL doesn’t enforce automatic expiry on T-PINs, but regular refresh is a good security practice.

The regeneration flow

  1. Visit web.cdslindia.com/myeasi .
  2. Click “Forgot Password / T-PIN”.
  3. Enter:
    • BO ID (Beneficial Owner ID; 16 digits).
    • PAN.
  4. CDSL sends an OTP to your registered mobile.
  5. Enter the OTP.
  6. Choose “Regenerate T-PIN”.
  7. CDSL sends the new T-PIN via SMS and email.

Verify the new T-PIN

After regeneration:

  1. Confirm receipt on both mobile and email.
  2. The new T-PIN immediately invalidates the old one.
  3. Use the new T-PIN in any subsequent eDIS authorisation.

What about active orders

If you regenerate while an order is in pending eDIS state:

  • The order may fail authorisation (old T-PIN invalid).
  • Cancel the pending order and retry with the new T-PIN.
  • Sell orders that have already executed are not affected.

Updating registered details first

If the issue is that your registered mobile or email is outdated:

  1. Don’t regenerate T-PIN before updating contact details (the new T-PIN will go to the old number).
  2. Update your mobile / email with CDSL via myeasi or via Zerodha support.
  3. Wait for the update to take effect.
  4. Then regenerate T-PIN to the new number.

Frequency

You can regenerate T-PIN as often as needed. CDSL doesn’t impose a cap; the operational system supports unlimited regenerations subject to OTP verification.

For routine use, regenerate annually (or more often if security concerns).

See also

External references

References

  1. CDSL, T-PIN regeneration process, cdslindia.com.
  2. Zerodha Support, T-PIN regeneration flow, support.zerodha.com.
  3. SEBI, Demat account authorisation framework, sebi.gov.in.

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The WebNotes Editorial Team covers Indian capital markets, payments infrastructure and retail investor procedures. Every article is fact-checked against primary sources, principally SEBI circulars and master directions, NPCI specifications and the official support documentation published by the intermediary in question. Drafts go through a second-pair-of-eyes review and a separate compliance read before publication, and revisions are tracked against the SEBI and NPCI rule changes referenced in the methodology section.

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