The mismatch is Somdev Devvarman paired with Badminton. Devvarman is a tennis player, not a badminton player. In 2010 he was one of India's most successful tennis stars of the year, winning gold in both singles and doubles at the Commonwealth Games in New Delhi and gold in singles at the Asian Games in Guangzhou. He had earlier been a top ranked NCAA singles champion in the United States before turning professional.
The remaining three pairs are correct. Gagan Narang is a shooter who specialises in the 10 metre air rifle event and has won numerous Commonwealth Games, Asian Games and World Cup medals. Arjun Atwal is an Indian golfer who became the first Indian to win on the US PGA Tour when he took the Wyndham Championship in August 2010. Anita Sood is an Indian swimmer who represented the country in national and international swimming events. Since Devvarman's sport is wrongly listed as badminton, option 1 is the mismatch.