Hindustan Petroleum Corporation Limited (HPCL) (BSE: 500104, NSE: HINDPETRO), is an Indian state-owned oil company headquartered at Mumbai, India. HPCL is ranked #336 globally in Fortune Global 500 list in 2011.

HPCL has steadily grown over the years. The refining capacity steadily increased from 5.5 million metric tonnes in 1984/85 to 13.00 million metric tonnes (MMT) now. On the financial front, the turnover grew from 2687 crores in 1984-85 to Rs 1,31,802 Crores in Financial year 2008-09.

In 2012, HPCL's fourth quarter net profit jumped to 4631 Crores, which is four times more that the last year's net profit.

In 2003, following a petition by the Centre for Public Interest Litigation (CPIL), the Supreme Court of India restrained the Central government from privatizing Hindustan Petroleum and Bharat Petroleum without the approval of Parliament. As counsel for the CPIL, Rajinder Sachar and Prashant Bhushan said that the only way to disinvest in the companies would be to repeal or amend the Acts by which they were nationalized in the 1970s. As a result, the government would need a majority in both houses to push through any privatization.

Guru Gobind Singh Ji (born: Gobind Rai) (Punjabi: ਗੁਰੂ ਗੋਬਿੰਦ ਸਿੰਘ [ɡʊɾu ɡobɪnd sɪ́ŋɡ], Marathi: गुरु गोबिंद सिंघ; 22 December 1666 - 7 October 1708) is the Tenth of Eleven Sikh Guru Ji'. Born in Patna, Bihar in India, He was also a Warrior, Poet and Philosopher. He succeeded His Father Guru Tegh Bahadur Sahib Ji as the Leader of Sikhs at a young age of nine. He contributed much to Sikhism; notable was His contribution to the continual formalisation of the faith which the First Sikh Guru Ji Guru Nanak Dev Ji had founded, as a religion, in the 15th century. Guru Gobind Singh transformed Sikhs into Khalsa (pure) in 1699.

Gobind Singh was born to Guru Tegh Bahadur, the ninth Sikh guru, and Mata Gujri in Patna. He was born while his father was on a tour of a neighbouring state Assam, spreading God's word. He learned Persian and Sanskrit when he was a child and was also trained to become a warrior.

Gobind Singh married three times and had four children. He was married off to Mata Jito in 1677, when he was only 11-years-old. They had three children together Zorawar Singh, Jujhar Singh and Fateh Singh. He married Mata Sundari in 1684, and the couple had one child, Sahibzada Ajit Singh. His third wife was Mata Sahib Dewan.