After activation of Stock Plus/Equity Plus, you can give Pledging Request on Back Office portal by following the below-mentioned path:

After completing this process SAS team will process your request and you will receive an Email & SMS for approval From NSDL for more information kindly click HERE

Note : 

1. All pledge requests received till 5 PM will be processed on the same day and if the client completes the OTP process by 7 PM he will get collateral starting next day itself for trading. If later then the client will get collateral benefit day after. 

2. As per circular all collateral stock and the funded stock would be required to be held by way of margin pledge in your DP account itself, for the SAS MTF (Margin Trading Funding) policy kindly refer this Link