Devendro Singh of India lost in men's fly weight (49kg) quarterfinal bout against Paddy Barnes of Ireland 23-18 to bow out of the London Olympics.Devendro Singh, who had a win courtesy RSC in the round of 16 started the bout as the aggressor going in the same vain as his earlier bouts but the experienced Irish Boxer Paddy Barnes kept evading the Indian?s left and right swings. While Devendro Singh relied heavily on his movement and straight punches, Paddy Barnes back paddled well and got in the crucial punches with good hooks.