Termination of the government bank employee during probation

If the transactions are abnormal in nature and causing any concern that would be harmful to the establishment then the vigilance department may put you on vigilance and scrutiny all the transactions pertaining to your account.

If all the transactions are genuine then you secure documentary evidences to protect your future interests.

The organisation cannot terminate you without holding a departmental inquiry and finding you guilty of any offence 

I opine, as per the heading of your query, you are doing bank job (scheduled bank/government) you have to obtain permission for doing other private service.

Facts posted are incomplete and vague, where presumption may prove harmful. 

what do you want to ask.

please do not put riddles.