Suthar was India's standout performer with the ball. The left-arm spinner claimed four wickets in the first innings and six in the second, finishing the match with 10 wickets
Pant hit 66 and Padikkal added 44 after his first-innings 167, helping India set Sri Lanka 372 - beyond Galle's highest successful fourth-innings chase.
Devdutt Padikkal went past 150 as India recovered from two quick wickets to strengthen their position against Sri Lanka on Day 2 of the first Test at the Galle International Stadium on Sunday.
Bangladesh completed a stunning nine-wicket victory over Australia in the first test on Sunday, securing its first win on Australian soil and only its second victory over the top-ranked Australia.