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Is DDPI mandatory to avail of SLB services at Zerodha?

Yes, DDPI is mandatory to place SLB orders currently. To activate the DDPI for the Zerodha account, download the DDPI (PDF), fill it and courier it to the following address:

153/154, 4th Cross, J.P Nagar 4th Phase,
Opp. Clarence Public School,
Bengaluru - 560078

  • Activation of DDPI (PDF) can only be done offline in Zerodha.
  • Ensure that the signature on DDPI matches the previously uploaded signature while opening the Zerodha account. The uploaded signature can be found by visiting, selecting Signature proof in the drop-down menu, and clicking on E-mail to me.
  • Refer to the sample copy of the DDPI (PDF) to know how to fill the DDPI. Client ID is the 16-digit Demat ID that can be found by visiting
  • The DDPI will be activated within 72 hours of receiving it, and a confirmation email will be sent once it is processed.