Hey Varun,
Can you share some screenshots of how you set the MT backtester?
We usually backtest the EAs for the last five years because on M15, looking further back than 2019 is irrelevant. I can assure you that if you do it properly, none of the EAs will lose on the backtest.
Give me more information: set up, broker, type of account, modeling, or just a screenshot so I can see all of it.
Cheers,