Mr Deora was India's longest serving Petroleum Minister.
Murli Deora, the Congress stalwart from Maharashtra, was a Gandhi family loyalist who had friends across the political and corporate spectrum.
Mr Deora, 77, was India's longest serving Petroleum Minister - completing exactly five years in office in a tenure that began in January 2006 and was spread between UPA-1 and II.
During his political career spanning over four decades, he was the longest serving chief of the Mumbai Regional Congress Committee which he helmed for 22 years. (
Murli Deora, Former Union Minister and Senior Congress Leader, Dies at 77)
A close confidant of former Prime Minister Rajiv Gandhi, Mr Deora was a key party fund raiser who was on personal terms with most of India's well-known industrialists.
He was rewarded for his loyalty when he was surprise pick to replace Mani Shankar Aiyar as Minister for Petroleum and Natural Gas in January 2006 during Prime Minister Manmohan Singh's first term.
Mr Deora was aknown to be pro-United States even during the Cold War, when India was closely aligned with the erstwhile Soviet Union and hosted several leaders from the US during the 1980s.
He as a close family friend of late industrialist Dhirubhai Ambani and was also close to Dhirubhai's children - Mukesh and Anil.
He will most be remembered for being at the centre of a bitter feud between the two warring Ambani siblings over natural gas from the Krishna Godavari basin in Bay of Bengal.
While the Anil Ambani Group accused him of helping Mukesh's Reliance Industries on pricing and allocation of gas and ran an unprecedented newspaper advertisement campaign, Deora was the one who ordered an audit by the Comptroller and Auditor General of spending in the KG basin fields, a first scrutiny of private books of accounts by the official auditor.
Mr Deora was retained in the oil ministry when the UPA won a second term in 2009, but was moved to Ministry of Corporate Affairs in January 2011 and finally dropped from the Cabinet later that year.
An economics graduate, he was Mayor of Mumbai from 1977 to 1978 and was later elected four times as Member of Parliament for Mumbai South, a seat later held by his son, Milind, who is also a former MP and ex-Union minister.
The veteran Congressman was also the chief of the Mumbai Regional Congress Committee for 22 years before he quit the post in 2003.
Deora joined the Union cabinet in 2006, shortly before he turned 70 and led oil diplomacy in Myanmar, Algeria and Egypt.
He also hosted the first India-Africa Hydrocarbon Conference and Exhibition in November 2007.
The Congress leader began his political career in 1968-78 as Municipal Councillor, Municipal Corporation of Mumbai. During 1982-85, he was Member, Maharashtra Legislative Council. He was also former Director, Life Insurance Corporation and ex-Chairman, Maharashtra Small Scale Industrial Development Corporation.
In 1985, he became Member, Eighth Lok Sabha and won three consecutive terms.
In 1995-96, Deora became the International President, Parliamentarians for Global Action, New York. In 1998, he won his fourth Lok Sabha poll and was a member of the 12th Lok Sabha.
He served as Chairman, Standing Committee on Finance 1998-99 and during October 2004 - January 2006 as Member, Consultative Committee for the Ministry of Finance.
In April 2002, he was elected to the Rajya Sabha. During 2002-2004 he was Chairman, Parliamentarians for Global Action, India and in 2004-05 he was Vice-President, International Federation of Red Cross and Red Crescent Societies, Geneva.
In April 2008, he was re-elected to Rajya Sabha. Between 19 January 2011-12 July 2011, he was Minister of Corporate Affairs.
He was currently serving his third term in the Upper House.