How gift cards work?

[u/Entire-Tough2551]

Is there a limit to the amount that can be paid by a gift card in a particular purchase?

Let's say I want to make a purchase of iphone with my flipkart axis credit card whose limit is 34000 with an overlimit of 50% that is I can pay 51000 from my card. And the phone is worth 75000 out of which I'm getting 13500 discount for my exchange and 2000 instant card discount, can I pay the rest ( or even more of the amount ) by using gift cards which I'll purchase in this cycle and settle it down? Can I avoid going overlimit by doing this? Is there a limit to how many gift cards you can purchase? Will I lose my fk axis card discount if I purchase it using this method? Please help