Kerala Vigilance and Anti-Corruption Bureau on Friday registered a case against senior IPS officer and ADGP Tomin J Thachankary (IPS:1987:KL) for alleged irregularities during his previous tenure. He was recently removed from the post of Transport Commissioner. "We registered the case after verifying various complaints we received against him and based on a petition filed against the officer at the High Court last month over irregularities when he was the transport commissioner," a Vigilance official told media. The agency had received 'concrete evidence' against him in many of the complaints, the official said. "We received complaints that Thachankary, during his tenure as the Transport Commissioner, had insisted on using a particular company's software at vehicle pollution testing centers," he said. There are around 500 pollution testing centers in the state for which the license is issued by the Transport Commissioner. "There were also complaints that he had indulged in irregularities in connection with vehicle tax, which is the third largest revenue earner for the state exchequer after liquor and sale tax," he said. Thachankary, who courted controversy by distributing cakes and sweets on his birthday in RTO offices across the state, was sacked by the Chief Minister last month.