DDG Gnyaneshwar Singh, Chief Vigilance Officer of NCB, is investigating Zonal Director Sameer Wankhede's case. Serious allegations, like being a Muslim but forging the birth certificate for getting a job and extortion of 25 crores, have been made against Wankhede. The officer probing Sameer Wankhede told that the investigation has been started taking suo moto cognizance in the matter.