The answer is generated from Real Time Research
Best places for river rafting are :
Kolad river rafting Kolad, Maharashtra
River rafting over river Beas in Manali it is 14km long
Orchha M.P. over river Betwa through Kanchana Ghat
Coorg, Karnataka over river Barapole, this river has around 10 rapids
Lohit river Arunanchal pradesh it is the tributary of Ganges