Imint, in principle, is an excellent idea, but I somehow an not finding it useful. This post offers an analysis of pros and cons of this reward program.
The core idea behind the scheme is to encourage people to spend more, that too at certain specific merchants/companies with whom iMint has a tie up. In exchange for your money which is spent at channel partners you will get some points, which when accumulated, can be exchanged for some gifts.
IMint started sometime in early 2007. It was fully free at that time. I applied and got a card delivered promptly within few days. They also tied up with major players like ICICI Bank, Airtel etc and got access to huge customer base these companied had. All customers of ICICI Bank, airtel etc were sent unsolicited imint cards-same individual would have got multiple cards- one from ICICI, one from Airtel, one through direct application etc- NO attempt was made to consolidate and issue a common card.
Continue reading here:
https://enidhi.net/2008/06/imint-points-reward-scheme-service.html