You can redeem your points at checkout. You will get the option to choose the number of points you want to redeem. You can even choose to not redeem any points and save it for another purchase. A minimum of 20 points is required to redeem them.
Please note that points will be approved only after 14 days of the transaction. No points will be awarded if you return or cancel your order. Discounts are capped at Rs. 5,000.