NIKI Flash sale 27th & 28th Sept September 27, 2018 By abhi Home NIKI Flash sale 27th & 28th Sept click to open couponExpires on 2018-09-28 Niki Flash Sale is Live! Get upto Rs. 75 on Bill Payments, Rs. 500 on Bus, Rs. 3000 on Hotels & more. Get extra 25% upto Rs. 100 & 10% upto Rs. 250 when you pay via Paypal & Payzapp respectively. All User Offer. Valid on 27th & 28th Sept.