Two days before top bureaucrat BK Bansal committed suicide in his Delhi home, his son, Yogesh, disclosed to tax officers that he had nearly 2.4 crores of black money. Yogesh Bansal was found hanging with his father from ceiling fans on September 27. In July, Mr Bansal's wife and daughter had killed themselves in the same flat after he was arrested on charges of accepting a bribe from a pharmaceutical company that was allegedly trying to buy its way out of an investigation.