Mumbai (AFP) – Backed by multi-billion-dollar investments from global tech giants, India’s richest man is ready to rumble with Amazon and Walmart for the country’s huge e-commerce market through his conglomerate Reliance.But it is far from certain that Mukesh Ambani’s latest gamble will pay off in a crowded market where many suppliers are not well-versed in digital business.The mogul has long trumpeted his ambition to revolutionise retail in the country of 1.3 billion by convincing farmers and shopkeepers to sell their goods on his new JioMart platform launched this year.But modernising India’…