I have account in state Bank of India and obviously I have a card also and I must say this card have made my life so much easier with the online purchases and all the reward system that you get for using the sbi card for purchasing things online.
The perks of owning an sbi card doesn't just end after owning it but as you will see there will be many offers available for you online that many host on purchasing with this card as sbi has a huge tie up with these online shopping companies. There are almost 10% off on purchase on mobile sand sometimes all the things like in flip kart.
I also have bought many of the products using this card as it is not only secure but easy to use and safe with otp password available to only registered number for security purposes that makes you want to buy the products by using this card. I totally love this facility and recommend others also.