Born on 16th March, 1956 in Shillong (Meghalaya). Studied in St Edmund's College, Shillong, (1962-1966) and St Columbia's High School, New Delhi (1966-1971). Passed the Indian School Certificate Examination in 1971-1972. Was selected for the National Science Talent Scholarship (1972). However, took up Economics (Hons) and graduated from St Stephen's College, Delhi University in 1975. Passed Tripos in Economics Examination from Trinity College, Cambridge University, U.K. in 1977 and obtained the B.A(Hons) and M.A. Degrees. Was Lecturer in Economics for B.A.(Hons) Second and Final Year students in St Stephen's College, Delhi (1977-1979). At the same time, was also studying for the LLB Degree which he received in 1980 from Delhi University. Enrolled as an Advocate on 5.9.1980 with the Bar Council of Delhi and started practice in the Supreme Court of India and Delhi High Court.