@kshitij009...
I am in a tier-1 city (Nashik in Maharashtra) and powership works fine with me, yes there are some issues and if you have volume sales then a regular follow up is required but just see the number of headaches it solves for you, no late delivery, no breakages, no theft, no issue of buyer not marking item not received, no buyers calling you up for shipments date and many more. Not to forget branded packing material which is made available to sellers.
I have opted for it because it has more PROS than CONS but that's my view.
You can call up logistics team and I am sure they will help you.
*****************