Though the posts are quite old, thoughts to answer it if someone comes to this thread for the answer:
Market-wide limit: The market-wide limit of open position (in terms of the number of underlying stock) on futures and option contracts on a particular underlying stock shall be lower of
* * 30 times the average number of shares traded daily, during the previous calendar month, in the relevant underlying security in the underlying segment,
Or
* * 20 per cent of the number of shares held by non-promoters in the relevant underlying security i.e. free-float holding.
This limit would be applicable on all open positions in all futures and option contracts on a particular underlying stock.