Delhi s oldest voter, 111-year old Bachan Singh on Sunday cast his vote at a polling booth in Sant Garh. He was wheeled into the polling both using a chair. “I will vote for those who worked for us,†he said. “He doesn’t even know that the Aam Aadmi Party exists. For him, every election has been a contest between the BJP and the Congress,†news agency PTI quoted his youngest son, Jasbeer Singh as saying.