You also have to consider the 70% redemption criteria, which lowers the reward rate to only 9.1%. Axis Atlas gives 7.2% on all spends except for travel. And, considering that an Atlas owner spends 750000 a year the reward rate would be 10.8% due to the 15000 in milestone + renewal benefits he gets. This is not including any travel spends, where the Atlas shines even more. And, the Atlas owner has the ability to buy the voucher from whichever vendor is giving the most discount, which Infinia owners obviously cannot do due to the low base reward rate.
One more thing that you have to keep in mind is that Axis Atlas has less than half the Annual fees of Infinia. And the value of 1 Infinia point is definitely not 1 INR, so please don't give me that excuse that the renewal points are worth 12k.