He graduated from the Faculty of Laws (Public Law), Ramkhamhaeng University, and leter, obtained the Honorary Doctorate in Laws, from the same university.

In 1974, he was appointed Member of the National Legislation Council and, in 1975, Senator. In 1976, he was elected representative of Suphanburi province for the first time, and has retained the position, ever since. He was appointed Minister of Transport and Communications, in 1986 to 1988, Minister of Industry, in 1988 to 1990, Minister of Interior in 1990, Minister of Finance, in 1990 to 1991, Minister of Transport and Communications, in 1992.

In 1994, he became Thai Nation Party Leader and Opposition Parties Leader, during the term of Mr. Chuan Leekpai.

After the Royal Decree of Parliament Closure, on May 19, 1995, Thai Nation Party, of which he was leader, won the landslide victory and he was, thus, appointed Prime Minister.

During his term, he was responsible for many important events, namely, the Decease Procession of the Princess Mother, the Golden Jubilee Celebration in Commemoration of the King's Accession to the Throne, United Nations Special Assembly in Commemoration of the Golden Jubilee, ASEAN Summit V, ASEM Conference, WORLDTECH ‘95 THAILAND and SEA Games XVIII, at Chiang Mai.

He left office, a year after, on September 27, 1996, when the concordance in the government diminished.