Balaji played for the Chennai Super Kings team in the 1st 3 editions of the IPL starting from the 2008 Indian Premier League. On 10 May 2008, he picked up the first hat-trick of the IPL tournament in the match against Kings XI Punjab at Chennai, and rounded off the evening with a match-winning five-wicket haul. His tournament was to end on a low as he bowled the final over to Shane Warne and Sohail Tanvir, with the latter hitting the winning runs off the final ball. Since his successful spinal operation in England by Prof. John Dowell he has returned to full form. Balaji has been notably consistent for the economy rate in all T20 matches in the IPL Chennai Super Kings as the normal matches of T20 seldom had run chases below or near 130 . He has not done much in the batting side of IPL.