Hi @Nagasahitya Welcome to Dhan community.
I am assuming that there is unpaid securities and the new process of CUSPA is triggered, for that more is mentioned here: New: (CUSPA) Change in the process of handling Unpaid Securities
Incase you have pledge the securities yourself, then in Dhan Mobile App or on Web, move to the Money section and see the ‘Get Margin Benefit’ just below the Add Funds section, you can see your pledged securities, and from there you can unpledge.
For further details specific to your account, please write to us on help@dhan.co