The correct answer is: A. Viswanathan Anand
The Rajiv Gandhi Khel Ratna Award is the highest sporting honour of India. It was instituted in 1991 in memory of former Prime Minister Rajiv Gandhi. The award is given annually to the most outstanding sportsperson of the year.
Viswanathan Anand is an Indian chess grandmaster and former world champion. He is the first and only Indian to win the World Chess Championship, which he did in 2000, 2007, 2008, 2010, and 2012. He is also the first Indian to be awarded the Rajiv Gandhi Khel Ratna Award.
Dhanraj Pillai is an Indian field hockey player. He is the captain of the Indian national team and has won the Arjuna Award, the highest sporting honour of India.
Sachin Tendulkar is an Indian cricketer. He is the captain of the Indian national team and has won the Bharat Ratna, the highest civilian award of India.
Geet Sethi is an Indian billiards player. He is the world champion in billiards and has won the Arjuna Award, the highest sporting honour of India.