As Amazon and Walmart-owned Flipkart scramble for ways to make a dent in India’s retail market, the two companies have stumbled upon a new challenge: Mukesh Ambani, India’s richest man. Reliance Retail and Reliance Jio, two subsidiaries of Ambani’s Reliance Industries, said they have soft launched JioMart, their e-commerce venture, in parts of the state […]