Indian football icon Sunil Chhetri is celebrating his 37th birthday today. Chhetri can easily lay claim to the tag of ‘greatest footballer’ to have emerged from India, having tasted success at both the club, international and individual level. Born in Secunderabad, Chhetri is the captain of the Indian national team and his club Bengaluru FC. Here are top 10 facts about the most prolific goal scorer in Indian football history.