Alleging that bank fraud cases rose during the NDA government's first term, the Congress on Tuesday said it hoped the BJP will take tougher steps and rectify the banking system.In a series of tweets, Congress leader Randeep Singh Surjewala said that during the first tenure of the Modi government, bank frauds amounted to Rs 1 lakh crore while people like Nirav Modi and Mehul Choksi fled the country.Surjewala added: "According to latest data by RBI, in 2018-19 alone, there has been a bank fraud of Rs 71,500 crore."