Congress on Tuesday unleashed a veiled attack on RPN Singh over his resignation by saying that the battle Congress is fighting only can be fought with bravery, coward people can't fight it. "The battle Congress is putting up all across the country, particularly in Uttar Pradesh is a battle against government resources, its agencies. It's a battle of ideology, truth and to fight a battle as strong pitched as this one you have to fight it with courage and a lot of dedication. I don't think this fight is meant for cowards," said Congress spokesperson Supriya Shrinate while addressing a press conference.