Metropolis Healthcare Ltd, a diagnostics chain operating in India and Africa, is looking to raise more than $300 million and bring onboard a strategic partner by selling a significant minority stake, according to people familiar with the matter.The company is in early discussions with several global strategic investors and other potential purchasers of the shares, said the people, asking not to be identified because the deliberations aren’t public. Metropolis, traded in Mumbai with a market value of $1.1 billion — about half what it was at the start of the year — tapped Barclays as an adviser, they said. A deal would likely include a sale of primary shares as well as secondary shares by existing investors, including the managing director, that could take the deal size over $300 million.Walmart Inc-owned retailer Flipkart and listed healthcare chain Apollo Hospitals Enterprise Ltd are among potential strategic investors that have signed non-disclosure agreements with Metropolis, while Amazon.com Inc has held preliminary discussions, said one of the people. Agreements are also in place with global funds including KKR & Co, TPG Inc and Barings, the person said, while talks are ongoing with Blackstone Inc.Also read: Europe recession and earnings misses by US retail companies should worry Indian IT firms, says Zoho CEOA Flipkart spokesperson said in an email the company isn’t making any such investment. Representatives of Metropolis Healthcare, Amazon, Apollo Hospitals, Barings, Blackstone, KKR and TPG declined to comment. A representative for Barclays declined to comment.Shares of Metropolis fell as much as 3.1 percent on Friday. They have halved since the start of the year amid a broader tech selloff and concerns about intensifying competition.Metropolis runs more than 3,000 diagnostics centres as well as pathology laboratories in India and Africa. It has grown as consumers sought out branded operators for tests and scans during the pandemic. The chain was founded in 1981 by Sushil Shah, whose daughter Ameera Shah has since taken the reins. Ameera Shah currently owns 50 percent of the company and could offload some of her shares in a secondary transaction that could increase the size of the deal, a person familiar with the discussions said.Also read: Paytm shares surge 6% riding on strong business updateDiagnostics chains have become targets for the likes of Amazon and Walmart, which are ramping up healthcare services to add to their retail offerings in India. Spending on preventive healthcare such as testing is rising in the country, driven by chronic and lifestyle-related diseases and an aging population.Intensifying competition is driving consolidation, with online pharmacy startup Pharmeasy buying a majority stake in publicly traded diagnostics chain Thyrocare Technologies last year for $612 million. Metropolis acquired diagnostic chain Hitech Diagnostic Centre for Rs 63,600 crore ($82 million) last year. To remain competitive, diagnostics companies need to invest heavily in newer technology and equipment and strengthen their online offerings.Despite the hits to its market price, Metropolis said it is focusing on expansion. It plans to start 1,800 collection centres in the next three years, the company said in an exchange filing. It will boost its home collection service to 200 locations within two years, it said in its most recent earnings filing in February.Also read: Zilingo fires CEO Ankiti Bose, she says her termination due to "insubordination"