I don't find the rewards on BOB Eterna credit card worth the annual fees. There are lot of exclusions now, which creates unnecessary confusion and uncertainty. SBI Cashback sounds much better choice with flat 5% cashback for online spends with much higher max cap, lesser exclusions, lower annual fees, lower fees waiver criteria.
The worthy benefits on Eterna seem to be: Unlimited domestic lounge access (for both primary and add-on cards), Paytm movies offer, Visa infinite BookMyShow offer, 3.75% returns on international transactions, merchant offers. If you value these benefits enough, then maybe you can go for it.