Hey, when you load paytm wallet directly in paytm app via credit card, it is chargeable.
So there is a method , first download UBER app then go to account section and select wallet then select add paytment method and then link your paytm wallet in it. After that you can load money in your paytm wallet there using any credit card or prepaid card also. If it fails , try load small amounts less then 1000 first.