India should field first and try to get Bermuda all out below 100 and then India has to chase within 10 overs. This will give us the net run rate of 8.0. After that India must still win against Srilanka but run rate shouldn't be a concern for India in the match against srilanka.
If you are looking for run rate against an underrated team,always field first.I hope Rahul & team has planned something in the same lines.
