Over 23,000 cases of fraud involving a whopping Rs 1 lakh crore have been reported in the past five years in various banks, according to the Reserve Bank of India (RBI).

A total of 5,152 cases of fraud, up from over 5,000 cases in 2016-17, were reported in banks from April, 2017, to March 1, 2018, it said in reply to an RTI query filed by this correspondent.

The highest ever amount of Rs 28,459 crore is said to have been involved in these cases of fraud reported from April, 2017, to March 1, 2018, the central bank said.