@DrTS u can look at this alsoUse Amex to transfer through Mobiqwik and transfer directly to their Kesari Bank account.You spend 2920/- per lac but save 1%, as no credit card swiped. So, you pay 1.9% effectively and hit Plat travel milestone of 4 lacs and get 48000 points and Taj Voucher worth 10k.
If you can negotiate and squeeze Kesari for 1% further discount saying you will make entire payment upfront.. You are sorted