India look set to make a huge total in the 1st innings of 600+ runs if Kohli can stick around and make 100+. WI really need to come out on day 2 and bowl well to keep India under 600 runs because if they get 600+ runs its all over as the WI batting hasn't been performing well in recent times so it would be tough for them. India need to bounce back from their poor test series with England which they look to be doing even though its against a weak test team.
Indians are always good at playing on home pitches but do totally opposite on other countries. India already reached 649 runs and last wicket left and Jadeja is in good form so if Shami give him some support. But the current total is already good enough for this WI to put under pressure and win this match since WI players are not good form. But as you said this huge win may give a very good confidence to Indian players to go to the next match.
India declared 649/9 and west indies lose 3 wickets for 25 runs, Mostly this match india will win with an innings if they all out west indies in low score and give them follow on. West Indies are not playing with their big players so india are having double advantage of home ground and Weak west indies players.
In test matches West Indies is now second grade team as most of players want to play different twenty/20 leagues and limited over games which is killing them very badly in last few years if they want in this formate they need to do some hard work and good planing for future otherwise they will be down and out.