Is kiwi.com trustable?

Me and my girlfriend natively from chennai are planning to visit Bangalore for 2 days. I planned this thing just because of her desire to experience flight and lounge access. So i was casually checking the prices in skyscanner and it amazed me! Any dates is fine with me so i searched for anytime. In the month of july MAA to BLR is just ₹1,200 to ₹1,300 rupees per person one way air india.

But the catch is the price is only from kiwi.com - the other websites like makemytrip,goibibo are priced like ₹3k to ₹4k one way per person.

So i just wanted to know and confirm - should I go ahead and book the flights for ₹1.5k per person one way and that just ₹6k for round trip for two people. Thats a stellar deal for me! But im skeptical about kiwi website!

Let me know your Thoughts please.

P.S: Also I do hold the following cards, will it be helpful for booking these flights. Any airmiles or something - i dont know! 1. Indusind tiger 2. HDFC millennia 3. HDFC swiggy 4. Axis neo - 2,300 Edge rewards also.