 One of the most successful professional Indian tennis players , he has received the Rajiv Gandhi Khel Ratna award , India 's highest sporting honour , in 1996 – 97 ; the Arjuna Award in 1990 ; the Padma Shri award in 2001 and its 3rd Highest Civilian Award the Padma Bhushan in January 2014 for his outstanding contribution to tennis in India . 
