India won by an innings and 46 runs
Umesh Yadav snaffled five wickets as India romped to a crushing win over Bangladesh by an innings and 46 runs to register their 12th successive Test series win on home soil.
India required a little over two days to achieve a thumping victory in their first day-night Test after bowling out the hapless tourists for 195 in their second innings.
India's dominant run in the home season has seen them march to four consecutive Test wins by innings margins with the preceding two triumphs coming against South Africa.
India now boast an astronomical tally of 360 points in the World Test Championship - the maximum points on offer for any team that has played three series.
They thus start out as early favourites to retain their number one position in the inaugural tournament.
Former Bangladesh skipper Mushfiqur Rahim led his side's brief fightback with a gritty contribution of 74 runs before falling to Yadav.
Bangladesh, who resumed the third day's play at 152-6, then soon collapsed as Mahmudullah did not come out to bat after walking off the field on Saturday due to severe cramps.
The hosts bowled only 8.4 overs at Eden Gardens on Sunday afternoon with Yadav claiming all the three wickets to record his third five-wicket haul in the format.
Ishant Sharma finished with astonishing match figures of 9-78 making this the first instance for India winning a Test at home without a spinner taking a wicket.
"With the way these guys are bowling now, they can pick up wickets on any surface -- whether we play at home or we play away," India captain Virat Kohli said.
"I think it is all about the mindset... these guys are very hungry, they are at the top of their game.
"I feel that we are in the right kind of space right now to capitalise on opportunities and everyone is enjoying playing in this team and I think that's the standout feature about us."
Kohli batted excellently to make a magnificent 136 that helped raise India's total to 347 for nine declared with a lead of 241 runs.
Bangladesh batsmen then found it difficult to cope with the moving ball under lights on day two losing four wickets for just 13 runs on the board.
Veteran Mushfiqur resisted the pacers well while Mahmudullah spearheaded an attacking innings before being forced to withdraw the field.
The match was marked by the Indian pacers' total supremacy over the Bangladesh batsmen as the visitors had to take two concussion replacements with the batters routinely struck on the helmet.
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