It will be a Pranab Mukherjee versus Purno Sangma race to Rashtrapati Bhawan. A technical objection to Mr Mukherjee's nomination made by Team Sangma has been rejected by the returning officer, who has scrutinized and accepted Mr Mukherjee's nomination papers today. But the BJP, which is supporting Mr Sangma, will not give up yet, insisting that a letter furnished by Mr Mukherjee's team to counter its charges is forged.