I m new trader & using pi software. Pls what is margin required for spread call in nifty futres

buy nifty16 may : Rs. 47466.00

sell nifty16june : rs. 47439.00

total : rs.94885.00

as per span calculation :

span margin : rs. 6207.00

exposure margin : rs. 35501.00

spread benefit : rs. 29579.00

total margin : rs. 12128.00

marging benefit : rs. 82756.0

Pls suggest me how much amount required for trading.