Economy PNB auditor in Nirav Modi case under scanner for GST evasion Updated : March 30, 2018 05:12 AM IST BDO has been collecting GST from the clients since July 2017. The collected GST amount is Rs 13.5 crore. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.