Paytm is very god and secure online money transaction site.it is 100% legal .it very helpful in many more work like instant bank transaction , mobile recharge, dth recharge many more.
this is online shoping app. but its curier services is not good.for deliverd the product it take very time.it give externaly paytm wallet app which is quite good. paytm app can be use in also for railway ticking. it ia become very famous in other app as paytm recharge.