The Vigilance department on Saturday raided the residence of RWD executive engineer Sanjay Kumar Rai in Bihar's Kishanganj and recovered crores of unaccounted cash. The vigilance team raided the residence of Sanjay Kumar Rai who is an Executive Engineer of the Kishanganj Division of Rural Works Department (RWD). The team targeted Rai after receiving information about bribes from the junior engineer and cashiers.