New Delhi: Chasing 276-run target, Rahul Dravid and Sachin Tendulkar took India to 152/2 at the close of the third day's play of the first Test against West Indies at Feroz Shah Kotla.
Dravid (30*) and Sachin (33*) added unbeaten 57 runs third wicket stand to steady hosts run-chase after losing openers.
Sehwag raced to his fifty in just 52 balls before Darren Sammy got better of him to reduce India to 95/2.
Sehwag smashed couple of sixes and five boundaries in his run-a-ball innings to give India an aggressive start.
Marlon Samuels trapped Gambhir lbw after the opener started the India chase aggressively with Virender Sehwag. Indian openers put on 51-run partnership inside 10 overs to provide the hosts a good platform.
India were 38 for no loss at tea on Day 3.
Earlier, Ravichandran Ashwin claimed a five-wicket haul on debut to help India bundle out West Indies for 180 in their second innings.
West Indies lost eight wickets on Tuesday morning but set a challenging 276-run target for the hosts with more than two days of play left on a slow track.
Ashwin, who took 3-81 in the Windies' first innings, finished with an impressive 6 for 47 runs in 21.3 overs in the visitors second essay. Another debutant, pacer Umesh Yadav also finished with a creditable 2 for 36 in 7 overs.
For West Indies, first innings centurion Shivnarine Chanderpaul was the leading scorer again with 47 off 58 balls. Skipper Darren Sammy (42) contributed handsomely lower down the order as the right-hander hit a six and five fours in his quick 37-ball knock.
Chanderpaul was trapped leg before by Ashwin after the left-hander tried to steady the Windies innings and added 40 runs with his Sammy for the eighth wicket.
West Indies were 109/7 at lunch on Day 3 - a lead of 204 runs - as they lost five wickets in the morning session on Tuesday.
Young Umesh Yadav dismissed Carlton Baugh (7) as Windies batsmen continued to struggle on the third day.
Ashwin struck twice in one over to dismiss Marlon Samuels (0) and Darren Bravo (12) and reduced West Indies to 63/6 in the morning session of Day 3.
Windies batsman Kirk Edwards (33) became Umesh Yadav's first Test victim as the young pacer gave the hosts a crucial breakthrough. Edwards hit four boundaries in his patient 80-ball innings before Yadav clean bowled him.
India started the third day at the right note as Ishant Sharma struck early to get rid of West Indies nightwatchman Fidel Edwards.
With the breakthrough, Ishant provided the hosts a chance to make inroads in the Windies batting line-up.
West Indies started the third day's play with 116 runs lead in their kitty on Tuesday after taking a crucial 95-run first innings lead on Day 2.
On Monday, India's famed batting line-up suffered a stunning collapse as an inspired Windies gained an edge.
After restricting West Indies to 304 all out, riding on Pragyan Ojha's career-best six for 72, the hosts' batting collapsed like a house of cards to be bundled out for a paltry 209 on an unpredictable Kotla track on a day, which saw as many as 17 wickets fall.
It was a combination of poor shot selection and some spirited bowling by the West Indies that saw India's high-profile batting-order crumble, though, many of them got the starts.
Brief scores
West Indies 304 and 180 (Chanderpaul 47, Sammy 42, Ashwin 6-47)
India 209 and 152 for 2 (Sehwag 55)
Status India need 124 to win