Suma is one of the most experienced rifle shooter in India. She was an Olympic finalist in the Women's 10m Air Rifle at the Athens Olympics in 2004. In the same year Suma won a Gold with a World Record score of a perfect 400/400 in 10m Air Rifle at the Asian Shooting Championship in Kuala Lumpur. Suma won a Gold and Silver medal in the Manchester Commonwealth Games in 2002, Silver at the Busan Asian Games in 2002, Bronze at Doha Asian Games in 2006 and Bronze at Delhi Commonwealth Games in 2010. She founded the Lakshya Shooting Club, an organization to support budding shooters.