Mr. Wadhawan, aged 68 years, retired as Chairman cum Managing Director of Hindustan Zinc Limited after a stint of more than ten years, in that post. Following his retirement in the year 1996 from Hindustan Zinc Limited, Mr. Wadhawan was appointed by the Govt. of India as a member of the Public Enterprises Selection Board (PESB). In the year 1998, Mr. Wadhawan appointed Chairman of PESB where he completed his tenure in July’99. Mr. Wadhawan is an Honorary Member of the Indian Institute of Metals, a Member of the International Association for Energy Economics, U.S.A and a Fellow of the Indian National Academy for Engineering. He is also associated as Chairman or member of several research councils, governing councils and advisory board of the Govt. of India.