Which credit card gives the highest cashback on online shopping?

Honestly, the annual fee is on the higher side. But if you spend consistently on the accelerated categories, the cashback more than offsets it. I did the maths on my own statement last year and came out ahead by about ₹3,200.

On the add-on card: yes, the primary cardholder is fully liable for all spends on the add-on. There is no separate credit limit or statement. So only issue it to someone you trust absolutely — spouse, parents. Not friends, not siblings you have money disputes with.

Two things nobody tells you: (1) GST is charged on the annual fee, so a ₹1,000 fee becomes ₹1,180. (2) Reward points usually have an expiry of 2-3 years. Set a calendar reminder to redeem before they lapse.