I think Amazon.in is by far the best e commerce sites in India.I have used some of the other sites as well but this one is the best.I have bought a mobile phone, book, memory card etc so far.All products are original and as per expectation.
The deliveries have been timely. The pricing has been good as well.I have downloaded their app .The app is useful as well. Infact I have bought products using app .The best part is that Amazon informs you the delivery status on its own and you need not waste your time chasing.
Regards