Currently, you can't buy FASTags on Freecharge. You can only recharge an already active FASTag on Freecharge that you have bought from the issuer banks.
What are FASTags?
How do I locate the issuer bank of my FASTag?
My payment was successful on Freecharge, but the amount has not been added to my...
How can I recharge my FASTag account on Freecharge?
Why my FASTag issuing bank is unavailable in the list?
I have recharged a wrong FASTag account. Can the FASTag recharge be cancelled?
How do I check if the amount is added to my FASTag account after recharging it?
I have recharged my FASTag account, but I am unable to cross the toll.
Are there any FASTag recharge limits on Freecharge?