The Full Form of RUC is Risk Containment Unit.

Banks are more intelligent and clever than you think. They have a lot more complex softwares to easily find out what’s fake and what’s not. All banks have a department called the Risk Containment Unit (RCU) which checks for the genuineness of every document you submit to them.

Some of them do a physical check of the bank statement by going to the respective bank of whose statement you gave submitted for verification by the bank official. At the time of collection of the documents, the officer/manager is supposed to see the original of the statement or physical verify the bank statement if downloaded from the internet.

P.S. Faking documents can land you up in the jail.