Amount of cash balance (item 6d) in no accounts case

Sir, Is there a minimum cash balance to be shown under no accounts case ? My CA who did my taxes last year has mentioned the cash balance of 50k in the ITR. Is there a reason why that would be., or is there a minimum cash balance to show in order to get some tax benefits ? In my case I am showing my speculative income as income from business otherwise no other business as such. Thanks in advance.