NR Narayana Murthy’s Catamaran Ventures in talks to pick up stake in Udaan SECTIONS Share Synopsis A minority stake in Udaan will give NR Narayana Murthy’s Catamaran Ventures a foothold in India’s B2B e-commerce space dominated by IndiaMart, JioMart, Amazon Business and Flipkart. It is currently a majority shareholder in Cloudtail, the biggest seller on Amazon India. ETtech Infosys co-founder NR Narayana Murthy's family office Catamaran Ventures is currently a majority shareholder in Cloudtail, the biggest seller on Amazon India. Mumbai:Catamaran Ventures, the private investment firm launched by Infosys’ co-founder NR Narayana Murthy, is in talks to purchase a small minority stake in Udaan from some employees of the business-to-business marketplace.