In 1981, NR Narayana Murthy and six engineers in Pune established Infosys with an initial capital of ₹10,000 borrowed from Murthy's wife, Sudha. Murthy, who turned 70 on Saturday, served as the Chairman of the software company for over 20 years. In 35 years, the market capitalisation of Infosys has risen to ₹2.33 trillion.