Cash is king in India, where many people use their debit cards solely to withdraw money from ATMs. But mobile commerce is taking off, with e-commerce giants Amazon and Alibaba driving an increasing openness to e-payments and internet banking by introducing mobile payment systems.

People in India predominantly use cash; being able to draw money out is often the main reason to get a debit card. Uber even had to introduce cash payments to cater to customers' desire to use hard currency. Despite this, a recent survey has found that a third of the country's ATMs don't work.

For the past decade, modern supermarkets have struggled to tempt Indians away from local shops. Now, Amazon is trying to change that. KiranaNow is a service that lets shoppers browse and order from their local convenience store and get items delivered in between two and four hours.

Supermarkets don't get a lot of love in India. It's the local stores with friendly banter and personal service that draw loyal customers. But as the country gears up for growth in grocery e-commerce, there's promise for the big players. What does the future of the food shop look like in India?