What is the cost and from which bank should i buy the FASTag annual pass?

I am thinking to purchase the fastag annual pass, which bank is the best and cheaper ? Also what is the final cost of FASTag with gst ?

The cost of FASTag annual pass is INR 3000 and it is valid for a period of 1 year from the date of purchase or 300 trips on national highways (whichever hits sooner). You can buy the pass from the Rajmargyatra app or the NHAI website and it will be activated on your current FASTag.