Good CC for flight booking every month

[experimental_spendthirft]

Hello
I have to travel to Indore twice in a month for business purpose via Indigo airline mostly , I wanted a credit card which can help me in discouns and also accumulate airline points which in future I can use to book free points, please suggest me good credit cards to apply / My one side travel ticket fare would be around 7000 - 8000 rs everytime .
I hold axis bank ace credit card.

EDIT:
Shall I apply---> SBI Cashback credit card ,
Kotak Indigo co branded card,

6E Rewards - IndiGo HDFC Bank Credit Card,
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[knowbie]

IndiGo BlueChips would be your only option if you want to fly IndiGo. A card or spending that gives you BlueChips is the best option. Compared to the loyalty program, airline discounts are a better bet, and you should look out for travel offers for the same.