Jadeja, the world's No.1 Test bowler on the ICC rankings, had been India's day four hero, collecting a five-wicket haul to help his side to a victory that was not just the visitors' largest against Sri Lanka but one which secured a series win.
Jadeja and Ashwin, who had shared seven wickets between them in the first innings, continued hitting the right lengths and lines. They trail the mammoth first innings score that India put on by 230 runs, and with eight wickets in hand, they will hope to eke out a lead by the end of proceedings tomorrow.
Ashwin hit a fluent 54, Wriddhiman Saha struck a patient 67 and Ravindra Jadeja smacked three sixes in his unbeaten 70 off 85 balls before India declared their innings.
He was handed a further three demerit points in the second Test against Sri Lanka for an incident on Saturday when he fielded the ball off his own bowling and threw it back at batsman Dimuth Karunaratne, who had not left his crease.
Sri Lankan bowlers found it very hard to bowl against Indian class batsmen and also failed to put any kind of pressure on them. They lead the series 2-0 with one match to go. Left-arm spinner Malinda Pushpakumara returned with 2/156 while Karunaratne and Dilruwan Perera bagged a wicket each. Umesh Yadav also chipped in with a wicket.
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Karunartane, after his 307-ball vigil, got a wicked delivery that jumped off his gloves with Ajinkya Rahane running behind the wicketkeeper to take the catch.
At lunch, the hosts were still trailing by 439 runs before being asked to follow-on with their second innings.
India spinner R Ashwin too lauded Karunaratne and Mendis for their fighting effort.
Pujara looked good during his brief stay on the second morning, fetching a boundary off Karunaratne, but the next delivery ended his 232-ball vigil. "I mean we were actually watching in awe yesterday, the sweeping was outstanding and we congratulated both the batters because it was proper Test cricket batting and high-quality temperament from both [Karunaratne and Kusal Mendis] and as well". He took the attack to Jadeja, who has now conceded nearly 200 runs in the match for three wickets.
However, after Sri Lanka were all out for 183 in the first innings in reply to India's 622, it was always going to be a catch-up game for the hosts.
This is the 26th five-wicket haul for Ashwin in Test cricket, achieving the feat in his 51st appearance in the longest format of the game. "Our second-innings batting has become more positive, we are taking on more chances and we are giving those extra 20-25 overs to the bowlers to get wickets if that phase is required".