Paytm is pretty old site but now a days in fashion.i used it first time 3 years ago and there is new trend going on online recharge, special thing is that they dont charge any cost for recharge and the payment gateway is secured by big names which is so important for us students, we dont want our money go waste.
It is very helpful to just skip rush on recharge shop and very handy app to use.I use everytime this app while to put my number.
I remember when it helps me most, its midnight I want to call my friends for taking information of tommorows exam, at that moment I have no balance and no credits obviously no way for shop but I just did it so easily with the help of paytm in just few minutes.Thats why I always use paytm and guys you should give it try.