India are hoping KL Rahul will be fit for their second and final Test with Bangladesh after he hurt a hand in the nets.

The batter has been skippering the side in the absence of regular captain Rohit Sharma, but he suffered an injury on Wednesday, the eve of the match.

Speaking ahead of Thursday's first day, batting coach Vikram Rathour indicated the blow was not a major one, but did not confirm whether Rahul would be fit to start.

"It doesn't [look serious]," he said. "He seems to be fine. Hopefully he'll be okay. The doctors are looking at it, but hopefully he'll be okay."

Rahul's potential absence would be a major blow to India, who are looking to seal a Test sweep after a 2-1 defeat to their hosts in their ODI series earlier this month.

Aside from Rohit, who is out with a thumb injury, Jasprit Bumrah remains a long-term absentee with back trouble, while Navdeep Saini is also missing for the second game due to a muscular problem.

Interim vice-captain Cheteshwar Pujara is the likely candidate to take over the leadership if Rahul is unable to recover in time, while Abhimanyu Easwaran could make his debut at the top of the order.

The Bengal batsman posted consecutive hundreds for India's A side, and was originally called up to the senior squad as Rohit's replacement.