good to know that as I have got amex PT recently and flying on octoberThis but Amex Plat Travel at Kolkata saved me a lot. Same lounge with two different entries with partitions, one from Mastercard, Visa and some Airline tie-ups. Another is one for AMEX, PP and some Airline tie-ups. With low AMEX uses I got into it within a minute while my Infinia friend had to wait for 40-60 minutes.