PayTM isn't a reliable site at all.
They came up with this lucrative scheme of giving away the battery pack from Xiaomi at rock bottom price. We believed in it because it was good for mobile and dth recharge etc.
They have cancelled many of my friend's orders after almost a week and not courteous enough to return the money.
They called me too saying that they have changed the colour of the offered product.
I'm just waiting for it to arrive, if at all.