I have some good experience with paytm, in 2014 I start using paytm, The service they provide is excellent,
I was order a watch from paytm and the qwality of the product was cool cool and origenal also, I was delivered before time.
Yes it is. I have made purchases several times and that experience is good. However, recomend to not purchase Clothes as they are not authentic as they claims brands like Lux/Rupa or others.
Their return policy also good. I ordered 1 eveready Emergency light with 50% Cashback offer, but after receiving the light was not switching on. So I just emailed the customer care and with in 2 days they arranged the pickup courier and credited my amount back.
So you can buy electonics items without any hesitation.