How to pledge option calls

I buyed a call of 11500 and I sold call of 11600 after few days and sensex goes to 12000 In that case how can I pledge my 11500 call to cover exposure margin

Pledging derivative products are not allowed.
Only stocks, mutual funds, ETF are eligible for pledging.

Hi, Options are derivatives product, Options along with Futures come with expiry so you cannot pledge them for collateral margin. You can only pledge Stocks, ETF’s and Mutual Fund’s to receive collateral margin in return.

I think you mean to say hedge, the hedge is to buy trade, if u sell a call , u can hedge by buying another call