The good thing about IDBI is that all the offers that are running on Flipkart, Amazon, Jiomart , Ajio are not exclusive to credit card. It works on their debit card as well. I been using their debit card to take advantage on all these sites. Their classic rupay variant is the cheapest debit card offering which gives 1 loyalty point for every 100 spend as well. Rupay platinum gives 2 loyalty point on every 100.
1 loyalty point = ₹0.25