. . . . . . . . "Persistent Systems was incorporated as Persistent Systems Private Limited on May 30, 1990. It was subsequently converted into a public Limited company on September 17, 2007 with the name Persistent Systems Limited and a new certificate of incorporation was issued on September 28, 2007 from the RoC.Shares in the company were listed on the National Stock Exchange of India in March 2010."@en . . . . . . "8000"^^ . . . "Persistent Systems Limited"@en . . "1990Z"^^ .