Which one amongst the following is the oldest production unit? [#1007]

The Digboi Refinery in Assam is the oldest refinery in India, having been commissioned on December 11, 1901. It was built by the British and is also Asia's first refinery. The refinery is known as the birthplace of the Indian oil industry. Oil was first discovered in 1867 while laying a railway line in the Digboi area.

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The Digboi Refinery in Assam is the oldest refinery in India, having been commissioned on December 11, 1901. It was built by the British and is also Asia's first refinery. The refinery is known as the birthplace of the Indian oil industry. Oil was first discovered in 1867 while laying a railway line in the Digboi area.

Nathan Brown and Oliver T. Cutter were the first American Baptist missionaries to arrive in Assam in 1836. Nathan Brown is considered the first Christian priest in Assam.

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Nathan Brown and Oliver T. Cutter were the first American Baptist missionaries to arrive in Assam in 1836. Nathan Brown is considered the first Christian priest in Assam.

Lord Curzon

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Lord Curzon

Phrasengmong Borgohain was the chief of the Ahom military during the reign of Ahom king Suhungmung. He was also the husband of Mula Gabhoru, the daughter of the previous Ahom king, Supimphaa.

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Phrasengmong Borgohain was the chief of the Ahom military during the reign of Ahom king Suhungmung. He was also the husband of Mula Gabhoru, the daughter of the previous Ahom king, Supimphaa.

The Barak valley has a geographical area of 6922.00 Sq. Km excluding 2(two) hill districts.

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The Barak valley has a geographical area of 6922.00 Sq. Km excluding 2(two) hill districts.

Hema Saraswati is known for writing 'Prahlada Charitra', one of the earliest poetic works in the Assamese language.

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Hema Saraswati is known for writing 'Prahlada Charitra', one of the earliest poetic works in the Assamese language.

Nasik, Dewas
The Department of Currency Management receives notes from four currency note printing presses. Two of the currency note printing presses are owned by the Government of India and two are owned by the Reserve Bank, through its wholly owned subsidiary, the Bharatiya Reserve Bank Note Mudran Ltd. (BRBNML). The government owned presses are at Nasik (Western India) and Dewas (Central India). The other two presses are at Mysore (Southern India) and Salboni (Eastern India). Coins are minted in four mints owned by the Government of India. The mints are located at Mumbai, Hyderabad, Calcutta and Noida.

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Nasik, Dewas
The Department of Currency Management receives notes from four currency note printing presses. Two of the currency note printing presses are owned by the Government of India and two are owned by the Reserve Bank, through its wholly owned subsidiary, the Bharatiya Reserve Bank Note Mudran Ltd. (BRBNML). The government owned presses are at Nasik (Western India) and Dewas (Central India). The other two presses are at Mysore (Southern India) and Salboni (Eastern India). Coins are minted in four mints owned by the Government of India. The mints are located at Mumbai, Hyderabad, Calcutta and Noida.

Omeo Kumar Das and Jayaprakash Narayan are both known as Lok Nayak, which means "leader of the people" or "people's hero".

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Omeo Kumar Das and Jayaprakash Narayan are both known as Lok Nayak, which means "leader of the people" or "people's hero".

Dr. Verghese Kurien (1921 - 2012) is popularly known as the "Father of the White Revolution" in India. He was a social entrepreneur and dairy engineer who led initiatives that significantly increased milk production in India.

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Dr. Verghese Kurien (1921 - 2012) is popularly known as the "Father of the White Revolution" in India. He was a social entrepreneur and dairy engineer who led initiatives that significantly increased milk production in India.

Dima Hasao

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Dima Hasao

Dehing Patkai is often referred to as the "Amazon of the East" due to its rich biodiversity and dense rainforest cover. It is spread across the districts of Tinsukia and Dibrugarh in Assam.

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Dehing Patkai is often referred to as the "Amazon of the East" due to its rich biodiversity and dense rainforest cover. It is spread across the districts of Tinsukia and Dibrugarh in Assam.