The CBI has filed a disproportionate assets case against retired PNB deputy manager Gokulnath Shetty and his wife Ashalata. The agency said they amassed disproportionate assets worth ₹2.63 crore between April 2011 and May 2017, which were 238.44% more than their known sources of income. Shetty allegedly issued the fraudulent Letters of Undertaking to Nirav Modi and Mehul Choksi's firms.