Hi Omkar,
I have a couple of questions also.
1. Have you tried doing this comparison with Mt4 and fsbpro instead of mt5 and fsbpro?
2. Why are you using mt5 rather than mt4?
Also have you compared a control point backtest (OHLC M1) in mt5 with the live trade results?
I have personally found mt5 backtester to be a real pain and pretty buggy. Something does look odd here, but I would recommend doing some tests using mt4 first.