Kumar won the Silver Medal in the 25 m rapid fire pistol event at 2012 London Olympics. He finished with an average score of 9.767 and had a score of 293 with 7 inner 10s in the first stage. Vijay's silver was the second medal for India at London 2012. Earlier Kumar failed to qualify for the men's 10 m air pistol finals after finishing 31st on 28 July 2012.