Current working sites for 5% CB on cashback CCs - A thread to discuss

Looking for a thread where I can find the current working websites/Application  list for

1. SBI CB CC 5%.
2. HDFC swiggy CC 5%
3. HDFC millennia CC 5%

(Including Amazon/Flipkart Gift card purchases, I read somewhere that HDFC swiggy is fetching 5% cb on Amazon because of wrong MCC, but I did not get when bought)

This may save time and avoid checking by doing a small transaction and waiting a day or two to confim.

If anyone knows .Please share.

Or can be shared in comments of this post as well. I will compile everything in the comments itself.

This will be beneficial for everyone.