West Indies crumbled to an innings defeat against India on the fourth day of the first Test after offspinner Ravichandran Ashwin claimed 7-83 with some inspired bowling.
India won by an innings and 92 runs in Antigua, claiming their biggest victory outside Asia.
Ashwin ripped the hosts apart in the second innings as West Indies collapsed to be all out for 231 after being forced to follow-on at the Sir Vivian Richards Stadium in North Sound on Sunday (Monday AEST).
It was man of the match Ashwin's third career seven-wicket haul and his first outside India.
Ashwin, who also hit a century, didn't get a wicket in the first dig.
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"The fast bowlers bowled really well in the first (innings) and I wasn't really finding my rhythm to be very honest," said Ashwin.
"I got a good long spell after lunch today. Rhythm is the most important thing for me."
Having started the day on 1-21 and trailing by 302 runs, West Indies were under immense pressure from the start.
After losing Darren Bravo in the first over of the day, the tone was set for their second innings, and the hosts never recovered.
Carlos Brathwaite, batting at No.9, top scored for West Indies with 51 not out, while Marlon Samuels (50) and Devendra Bishoo (45) tried to frustrate the visitors but they only delayed the inevitable.
India ensured they would not lose with a first-innings total of 8-566 (dec).
Pacemen Mohammed Shami and Umesh Yadav did the damage in the first innings with four wickets each, before Ashwin took over.
"It was a complete performance," said India captain Virat Kohli, who played no small part in the victory with his first career double century.
West Indies, a lowly eighth in the ICC Test rankings, started the four-Test series as big underdogs, but their inability to make a contest of the first Test will raise further concerns about the future of the Caribbean team in the five-day format.
"We didn't really bowl well in the first innings. It was a daunting task, trying to chase 560-odd," said West Indies captain Jason Holder.
The second Test starts on Saturday in Kingston, Jamaica.
