Bought one myself finally at 17749 from Daraz yesterday. It would be sad if this was available in the market already for 18k with official warranty :s I knew the rule of thumb with infinix quote any online price and the shopkeeper will give for 500rs less.Bought the 3GB/32GB version for 19,700 (+shipping) from Telemart.
Also found one at a local shop for 19,500 (after a bit of bargaining).