As Walmart tries to expand its global grocery business, it has moved to purchase 73% of Flipkart for $16bn. Why? Indian laws don't allow Walmart to open physical stores. A purchase such as this therefore provides access to the Indian market and a well-known presence and network that stands alone. Further, it provides a springboard which is ready to be leveraged should the legal landscape for direct ownership change.

As it increasingly moves to be a technology-driven company, Walmart has pioneered blockchain technology in its supply chains in China and intends to do the same with Flipkart to ensure traceability and tracking in the food supply chain.

And why Flipkart in particular? Its large logistics network and proven ability to take on Amazon will undoubtedly have played a part. Walmart's goal here is clearly to become market leaders in India - and if you can afford it, why wouldn't you start at the top?