How to fill a Dematerialisation Request Form (DRF)?

To fill the Dematerialisation Request Form (DRF)¹ (PDF) follow these steps:

Fill the 16 digit Demat ID ². To find the demat ID, visit console.zerodha.com/account/demat.
If the shares are under a lock-in period (ESOP, promoters shares etc.), tick Locked-in-Securities. If the shares are not under a lock-in period, tick Free Securities.
The name of the company, ISIN, and face value can be found by visiting nseindia.com or bseindia.com.
The DRN and the Application Slip, Ref No and DRF no. fields can remain empty.
Enter Certificate No. found on the share certificate. If the numbers are in sequence, enter the from and to numbers. If the numbers are not in a sequence, enter them separately in each row.
Enter the Distinctive No. found on the share certificate. If the numbers are in sequence, enter the from and to numbers. If the numbers are not in a sequence, enter them separately in each row.
Enter the quantity of shares as per the share certificate.
Enter the Number of certificates in words along with the face value in numbers as per the share certificate.
Enter the lock-in reason and lock-in release date as per the share certificate if securities to be dematerialised are in the lock-in period.
Enter the name of the holders of the securities.
Holder(s) must sign in the following fields:
* Signature with DP: This signature has to match the one in the records of Zerodha³.
* Signature with RTA/Issuer/Co: This signature has to match the one in the records of the company.
If the share certificate is jointly held, all the holders must sign the DRF.