India posted a competitive 376 in their first innings on the second day of the opening Test against Bangladesh, thanks to Ravichandran Ashwin's century and his 199-run partnership with Ravindra Jadeja.

Ravichandran Ashwin made 113 in a commanding partnership with Ravindra Jadeja to lead India to 376 all out on day two of the first Test against Bangladesh on Friday in Chennai.

Pacer Hasan Mahmud became the first Bangladesh bowler to take a five-wicket haul in a Test match on Indian soil and rattled India's batting lineup in the first innings of the first Test in Chennai.

The Bangla Tigers elected to bowl first in a Test match in India, a rare instance in red-ball cricket in India.

India, who started the day at 339/6, lost all four wickets for the addition of just 37 runs with Jadeja (86) being the first to fall.

A series sweep against Bangladesh will cement India's place atop the World Test Championship (WTC) standings but the team under Rohit Sharma are guarding against any complacency in the two-match home series beginning in Chennai on Thursday.

Bangladesh fast bowler Hasan Mahmud rattled India with four wickets to leave the hosts on 176-6 at tea on the first day of the first Test at Chennai on Thursday.Mahmud ripped through the Indian top order including skipper Rohit Sharma and Virat Kohli -- both scoring just six runs -- to leave the hosts teetering at 34-3 inside the first hour of play.