India closed in on a 2-0 series sweep in the second Test despite some spirited West Indies batting led by centuries from John Campbell and Shai Hope on Monday.
Needing 121 for victory after bowling out the West Indies for 390, the hosts reached 63-1 at stumps on day four at Delhi's Arun Jaitley Stadium.
KL Rahul, on 25, and Sai Sudharsan, on 30, were batting in a stand of 54 at close of an absorbing day's play.
Yashasvi Jaiswal fell early for eight after left-arm spinner Jomel Warrican had the Indian opener caught at long-on while attempting an ambitious heave.
Rahul and the left-handed Sudharsan steadied the ship and the pair kept up the scoring with singles and occasional boundaries against a persistent West Indies spin attack.
Earlier, Justin Greaves with an unbeaten 50 and Jayden Seales (32) put on 79 runs for the final wicket to frustrate India after the West Indies slipped to 311-9 in the second session.
Greaves and the left-handed number 10 defied the bowlers for 133 deliveries with straight-bat shots before Jasprit Bumrah dismissed Seales in the final session for his third wicket.
Left-arm wrist spinner Kuldeep Yadav also took three wickets to add to his five-wicket haul in the West Indies' first innings.
Campbell (115) and Hope (103) had steered the West Indies into the lead after the tourists resumed the day on 173-2 while following on.
"I think it's a big positive for us," Campbell said of their fightback. "Having not gotten the best first innings, we came out second innings and batted over 100 overs, so that's a big plus for us."
The left-right batting pair of Campbell and Hope put on 177 runs for the third wicket.
- Kuldeep strikes -
Opener Campbell reached his first Test ton with a six off Ravindra Jadeja before the left-arm spinner trapped him lbw in the morning session.
Hope kept up the charge after lunch and reached his first Test hundred in eight years with a boundary off pace bowler Mohammed Siraj.
Siraj had his revenge soon after when the batter dragged his delivery onto his stumps.
Kuldeep then took over to send back wicketkeeper Tevin Imlach, trapped lbw for two.
The left-arm wrist spinner then struck twice in three balls including skipper Roston Chase for 40 before Greaves and Seales put on a defiant partnership.
India bowled more than 200 overs on a slow pitch that made life tough for bowlers.
The visitors had waged a fightback after being reduced to 35-2 in their second innings on day three, but the batters made sure the game will go the distance to day five.
"Good to be bowling long spells and heartening to have taken 20 West Indies wickets," Indian spinner Washington Sundar told reporters.
"We got to be really fit and on top of our game. In Test cricket you honestly expect most of the Test matches to go till the fifth day and challenge you in every way possible," the off-spinner said.
India enforced the follow-on after they bowled out the West Indies for 248, a deficit of 270 from the hosts' first-innings 518-5 declared.
The hosts won the first Test, in Ahmedabad, by an innings and 140 runs.
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