Doubt on Synthetic Long Call

I want to made Synthetic Long Call on Nifty. In this Strategy I have to Buy Nifty futures and to Buy Nifty Put. To Buy the Nifty Futures & 8600 Put each 100 Quantity Span Calculator showing Total Margin as 50,393 /-. My Doubt is If Nifty Futures are in Loss to cover those loss Is I need to maintain money in my trading account ?

Yes, You have to maintain required margin to carry your existing future position whereas if position makes profit it will be credit to your account if losses will be debit on same day eventhough you have options long position and the margin requirement figure can be change as volatilty of market.