Former captain Sourav Ganguly feels the Indian team won’t be challenged much by Sri Lanka throughout the duration of the tour. India on Saturday hammered Sri Lanka by 309 runs in the first Test at Galle to clinch a 1-0 lead in the three-match series.The difference in quality between the two sided was clearly visible as India outplayed Sri Lanka in all three departments of the game throughout the four days of the match.On top of that, the hosts lost a key player in Asela Gunaratne, who got fractured his thumb while attempting a catch to dismiss Shikhar Dhawan in the very first session on Day 1 and was eventually ruled out of the match and subsequently the series.Captain Herath also injured his left hand while trying to stop a boundary hit by his counterpart Virat Kohli on Day 3 and couldn’t take any further part in the match.India, who resumed their innings on Day 4 at 189/3, declared their second innings on 240/3 after Kohli got to his 17th Test hundred, setting Sri Lanka an improbably target of 550 for victory.Ravichandran Ashwin and Ravindra Jadeja then spun a web around the hosts and took three wickets each to bundle them out for 245 in the final session on Day 4.”India are perfectly balanced with so much firepower in their batting, bowling and fielding. Sri Lanka on the other hand, have a lot to worry about,” Sourav Ganguly told India Today.”The last two years they (Team India) have been wonderful, especially away from home. Under Anil they won everything in the West Indies and then came the home season.advertisement”I feel India won’t be challenged in these conditions. Kohli is absolutely right when he said in the post match ceremony that ‘they have been clinical in their performance’,” he added.The last time India toured Sri Lanka in August 2015, they lost in the Galle Test. Since then India have played 24 Test matches, winning 18, drawing five and losing just one. Not only this, India are the most successful Test side since December 2014 with 18 wins in 28 matches.But Ganguly is still of the opinion that Kohli’s team is yet to be tested in Test cricket and that can only happen once they travel to places like South Africa, England and Australia.”Virat hasn’t been tested yet. Sri Lanka is probably not the strongest Test side at the moment. For me, the fans as well as for Virat Kohli himself, the yardstick will be how well his side performs in South Africa, Australia and England.Talking about Kohli’s return to form, Ganguly said, “I don’t consider it a lean patch as he only struggled in one series. If you look at the Champions Trophy and the one-day series in West Indies, he has been in good touch.”And lastly, he reckons that Sri Lanka will have to get their act together in the bowling department otherwise they will be fielding for a very long time in the coming matches.”Sri Lanka have a lot to think about on how to get batsmen like Shikhar Dhawan, Cheteshwar Pujara, Kohli and Ajinkya Rahane out. If they don’t bowl well they will have to field a lot in these hot and humid conditions,” Ganguly said.