Lenskart: Get Rs.500 off on Rs.1000
http://www.lenskart.com/
Get the coupon from the Hike
T&C:

Apply the code in E-gift voucher section
Valid on min purchase of Rs 1000
Applicable only once per customer
Applicable over and above existing discounts
Offer not valid on Rayban, Fastrack, Vogue, Oakley and Contact Lenses
Cannot be combined with any other offer/discount/promotion
Cannot be redeemed in cash
Prices exclusive of all taxes
Hike shall not be held responsible for any liabilities/claim arising out of use of this coupon