Is India's online shopping sector growing too fast?

E-commerce in India is expected to be worth $75bn (£48bn) by 2020.

The biggest home-grown firms are attracting billions in investments, while Amazon is also muscling in.

But after high-profile failures to meet demand during big promotions, some are wondering if the supply chain and back-end parts of these businesses can cope with this rapid growth.

Sameer Hashmi reports from Mumbai for India Business Report.