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.

Bhuban Mohan Baruah, (BMB=KB), a prominent Assamese novelist and short story writer, often used the pen name 'Kanchan Baruah' for his literary works.

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Bhuban Mohan Baruah, (BMB=KB), a prominent Assamese novelist and short story writer, often used the pen name 'Kanchan Baruah' for his literary works.

The Hindu name of Suklengpha was Kamaleshwar Singha. Suklengphaa, or Kamaleswar Singha, was the king of the Ahom kingdom from 1795–1811. He came to power as a toddler and died from smallpox in his teens.

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The Hindu name of Suklengpha was Kamaleshwar Singha. Suklengphaa, or Kamaleswar Singha, was the king of the Ahom kingdom from 1795–1811. He came to power as a toddler and died from smallpox in his teens.

Pushyavarman established the Varman dynasty in 350 AD, making him the dynasty's founder. The Varman dynasty was the first historical dynasty to rule the Kamarupa kingdom in Assam, India.

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Pushyavarman established the Varman dynasty in 350 AD, making him the dynasty's founder. The Varman dynasty was the first historical dynasty to rule the Kamarupa kingdom in Assam, India.

The National Institution for Transforming India (NITI Aayog) was established on January 1, 2015. The Union Cabinet passed a resolution to replace the Planning Commission with the NITI Aayog.

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The National Institution for Transforming India (NITI Aayog) was established on January 1, 2015. The Union Cabinet passed a resolution to replace the Planning Commission with the NITI Aayog.

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".

1951-56
India’s First Five-year Plan was implemented from the year 1951 till 1956. It mainly focused on the development of primary sector. The Plan was based on the Harrod–Domar model implemented with some modifications.

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1951-56
India’s First Five-year Plan was implemented from the year 1951 till 1956. It mainly focused on the development of primary sector. The Plan was based on the Harrod–Domar model implemented with some modifications.

On 26 January India celebrates as Republic Day. The constitution was adopted by the Indian Constituent Assembly on 26 November 1949 and came into effect on 26 January 1950. 26 January was chosen as the date for Republic Day as it was on that day in 1930 when the Declaration of Indian Independence was proclaimed by the Indian ,National Congress.

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On 26 January India celebrates as Republic Day. The constitution was adopted by the Indian Constituent Assembly on 26 November 1949 and came into effect on 26 January 1950. 26 January was chosen as the date for Republic Day as it was on that day in 1930 when the Declaration of Indian Independence was proclaimed by the Indian ,National Congress.

Bhabendra Nath Saikia

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Bhabendra Nath Saikia

Manoj Kumar Goswami is a renowned Assamese writer who was recognized for his exceptional contribution to Assamese literature with the Assam Sahitya Akademi award in 2022. His book "Bhool Satya" is a collection of thought-provoking short stories that have garnered critical acclaim.

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Manoj Kumar Goswami is a renowned Assamese writer who was recognized for his exceptional contribution to Assamese literature with the Assam Sahitya Akademi award in 2022. His book "Bhool Satya" is a collection of thought-provoking short stories that have garnered critical acclaim.

Kanaklata Barua, a young freedom fighter from Assam, is revered as "Birbala" (Brave Girl) for her courageous participation in the Quit India Movement. She became a symbol of resistance against British rule in Assam.

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Kanaklata Barua, a young freedom fighter from Assam, is revered as "Birbala" (Brave Girl) for her courageous participation in the Quit India Movement. She became a symbol of resistance against British rule in Assam.