Dear Dhan, I have already pointed this in a different context at the thread
“Yes Pj and Naman… Please give the user a way such that if the 1st leg is successful then execute the second leg so on as so forth . In this way we can avoid margin issue. Also, if you can allow drag and drop strike prices as per user preference is his order of preference that would be great”
At least implement this for market order. though limit orders in basket order may be an an bit complex in implementation