Not only just this time they are playing good at their home ground I saw their previous match on their home play ground and what I've seen is that they've consistently done well in those matches except some few match. And I think with that consistency they were able to beat India and take the series in their favour. I also thought that they also hold the ability to win 3rd ODI and make whitewash India.
Third ODI will be played in a different venue. Pitch condition will be different there. I think Indian players will do better in that condition. Bangladesh had won the previous ODI series against India by 2-1, It was played in 2015. Probably this series will end in the same way. Indian players will get huge pressure from their cricket board if they lose the third ODI as well.
Venue plays an important role. At the same time it is also to be noted that India will win the upcoming match unlike the venue. Indian players used to do the best when they're left to do independent. First ODI is an example, if the bowlers weren't given pressure they would've took the last wicket that brought 50 partnership and won the match for Bangladesh. In the second.match the loss of wickets made the players look for a way to withstand wickets and this made them miss the scoring. This time the series is lost and they'll freely play and win the match.
I think this match will be a do or dead situation for indian batting and bowling lineup because if India lose the 3rd ODI too which mean indain will be washout by Bangladesh in ODI series , then this will be a tough situation for indian team because BCCI will be take huge action against team & I think losing this ODI series will be the main reason of ending some senior player career because now in Indian squad most of them are above 30
So all of my good wishes is for indain team and especially Kohli to perform well and make his position stronger and stronger in team.