Bangladesh managed to prise out the wicket of opener Mayank Agarwal (14) as India reached 35/1 at tea on day 1 of the second and day-night Test at the Eden Gardens in Kolkata.
It was the lone consolation for the visitors on a day that saw them being bundled out for 106 in just 30.3 overs and being forced to replace Liton Das and Nayeem Hasan because of concussion, in the second Test of the two-match series.
Opener Rohit Sharma (13*) and Cheteshwar Pujara (7*) are at the crease.
The first day of the historic day-night Test has been a nightmare for Bangladesh so far. India pace trio of Ishant Sharma (5/22), Mohammed Shami (2/36) and Umesh Yadav (3/39) demolished the visitors with the pink ball. Opener Shadman Islam was the top scorer with 29 runs.
Liton Das was the next highest scorer, with 24, but he had to retire injured as he suffered concussion after being hit by a Shami snorter. Mehidy Hasan came in as concussion substitute.
Bangladesh skipper Mominul Haque once again surprised everyone opting to bat on a seamer-friendly track. He was proved wrong soon as the Indian pacers ripped through the Bangladesh batting line-up.
The heavily-lacquered pink ball had a quiet first three overs before Bangladesh batsmen started collapsing. The ball was seaming and the pacers were getting it to rear up from the good length.
Bangladesh batsmen looked unsettled by the capacity crowd, something they have never encountered even in their home Tests and the world class bowling made it even more difficult.
Such was their plight that for the first time in the subcontinent, batsmen numbers 3, 4 and 5 (skipper Mominul Haque, Mohammad Mithun and senior-most player Mushfiqur Rahim) were all dismissed for duck.
Pushed into the unknown territory without any practice back home, Bangladesh opening duo of Shadman Islam and Imrul Kayes survived some anxious moments in the first six overs before Ishant Sharma trapped the latter.
Umesh then triggered the collapse in his second spell with two wickets in three balls, first being skipper Mominul who was dismissed by a beautiful diving one-handed catch by Rohit Sharma.
Next was Mohammed Mithun beating him by pace as it sharply cut in with the batsmen playing on to his stumps.
Despite the catching scepticism surrounding the pink ball, Saha looked a class act behind the stump as usual as the ball was swinging a lot after moving the batsman.
His low catch of Mahmadullah, outstretched and dragged across Virat Kohli at the first slip, was the highlight of his keeping as he also completed a milestone of 100 dismissals in longest format.
Post lunch, Ishant Sharma and Shami mopped up the tail, as India used only one over of spin.
(With PTI inputs)