A superb three-wicket burst by Ishant, who grabbed a career-best six for 55, helped India dismiss the West Indies for 190 in their first innings yesterday.
Ishant took the last three West Indies wickets off five balls conceding just one run to end the West Indian resistance in the post-lunch session at the Kensington Oval.
India, after scoring 201 all out in their first innings, were 23 for no loss from 5.4 overs in their second innings when the stumps were drawn as only four deliveries were bowled in the final session due to rain and bad light.
Tea was also taken 10 minutes earlier than scheduled due to rain.
The visitors have now taken an overall 34-run lead with all their second innings wickets intact. Openers Murali Vijay and Abhinav Mukund will resume tomorrow on three and eight respectively.
Altogether, 42 overs were played on Thursday, an improvement from the 25.3 on Wednesday.
Ishant picked up the last two wickets off successive balls -- Ravi Rampaul (0) and Fidel Edwards (0) -- after dismissing West Indies captain Darren Sammy (15) in the earlier over towards the close of post-lunch session to keep India ahead in the Test.