Shyamsundar started playing chess at the age of 8 and became IM in 2006 by winning silver medal in Asian Juniors and became GM in 2012.Most of the times he used to work by himself to reach this level.He was one of the seconds for Indian Olympiad Men team held at Batumi,Georgia in 2018.He was also one of the seconds for Women World championship in 2018 at Khanty Mansysk,Russia.

Personally his best achievement was drawing the game against legend and former World Champion Vladimir Kramnik at Qatar open in 2014.Other main achievements include

  • Gold Medals in Asian Juniors in the years 2010 and 2011
  • Silver Medal in Asian Juniors in the year 2006
  • Bronze Medal in Asian Juniors in the year 2007
  • Silver Medal in Commonwealth Championship in the year 2012
  • Gold Medal in World Youth Olympiad Team Championship in the year 2008 and won Gold Medal as Board Prize.
  • Winner of Montcada Open in the Years 2017 and 2018.
  • Winner of Sant marti Open in the Year 2017 .
  • Tie for Second place in Indonesian Open in 2013.
  • Tie for second place in Hastings Open in 2012