Sri Lanka tour of India will be toughest for the visitor, but India test wicketkeeper Saha insisted that keeping to the likes of seamers Ishant Sharma and Mohammad Shami is far more difficult than other swing bowlers in the team.

Indian seletor had pick likes of swing and pace machine Ishant Sharma and Mohammed Shami pose bigger challenge not only for the batsmen but as well as wicket keeper than swing. Their ball movement more than Umesh Yadav and Bhuvneshwar Kumar after it goes past the wicket. It becomes tough for the wicket keepers to grab those balls. Seam bowlers pose bigger challenge than swing," Saha told the reporters.

When the same question was raised about the spinners, the 33-year-old singled out the performance of Ravichandran Ashwin. Saha insisted that Ashwin has got a lot more variations in his bowling than other spinners like Ravindra Jadeja and Kuldeep Yadav. Ashwin is ahead of others not only in India squad but in the world. Ashwin has got many variations, also the length varies, so it's tough for the batsmen to read. The veteran has more variation than Jadeja and Yadav. Saha said following the team's first practice session ahead of the series. Talking about the upcoming series against Lanka, Saha said that his side's immediate goal is to win the opening Test and then carry on the momentum in rest of series.

After beating New Zealand in the ODI and the T20I series, India are now scheduled to take on Sri Lanka for a three-match Test series, beginning November 16