Amazon is reportedly seeking to take a 60 per cent stake in Indian e-commerce firm Flipkart, which would challenge Walmart's interest in the company.
News of Amazon's offer comes days after reports that Walmart was close to a deal of its own for Flipkart.
Walmart has been expanding its online offerings and is looking to gain a presence in India.
The three companies have not commented on the report.
Flipkart, which launched in 2007, has valued the company at more than $11 billion.