Brother.... prices depends upon package like 8 kilometre ,15 kilometre, 20 kilometre I did rafting in rishikesh some years ago do bargain at the point they said 1200 rupee for 20 kilometre per person I paid 600 for the same per person I can say prices would be start from 500 rupees per person . do bargain at the point clearly prices depends upon the package you opt. there are so many oprator in rishikesh so do bargain as much as you can.