If you have a Federal Bank account or have a debit card, you will definitely get this benefit.
All you have to do is go to Google Home, search for Federal Reward, click on the link you just saw, and fill in the blanks.
First type the number on the back of the debit card without error.
Then type in the registered mobile number or email.
Then Solve Capture then login and OTB will come and type it then the account will open and if you click on My Account it will have how many points you have. In it you get 25 paise per point, so you can recharge as well as DTH recharge so there are many options.