sentences:  The group includes over 50 subsidiaries and has executed a diverse range of projects in over 60 countries.Its main offices are in Gurgaon, Haryana, India , and its stock is listed on the Bombay Stock Exchange and also on the National Stock Exchange of India .The foundation of the company was laid by its chairman Atul Punj in 1982 when he started the pipeline division of his family business, Punj Sons Private Limited.