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.

Kanchipuram Sarees are a renowned type of silk saree, originating from the Kanchipuram region in Tamil Nadu, India. They are known for their intricate designs, rich colors, and high-quality silk.

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Kanchipuram Sarees are a renowned type of silk saree, originating from the Kanchipuram region in Tamil Nadu, India. They are known for their intricate designs, rich colors, and high-quality silk.

Sukapha led his march through the Patkai Pass. This pass, also known as the Pangsau Pass, is located in the Patkai Range on the Indo-Myanmar border. It was the most convenient route for the Ahoms to enter the Brahmaputra Valley.

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Sukapha led his march through the Patkai Pass. This pass, also known as the Pangsau Pass, is located in the Patkai Range on the Indo-Myanmar border. It was the most convenient route for the Ahoms to enter the Brahmaputra Valley.

Hirakud Dam is the longest dam in India with a total length of 25.79 km. The Hirakud Dam is situated on the river Mahanadi, Odisha.

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Hirakud Dam is the longest dam in India with a total length of 25.79 km. The Hirakud Dam is situated on the river Mahanadi, Odisha.

The Digboi Refinery, recognized as the oldest operating oil refinery in India, is situated in the Tinsukia district of Assam. It was established in the early 20th century and continues to play a significant role in the region's oil and gas industry. It is a testament to the long history of petroleum exploration and refining in Assam.

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The Digboi Refinery, recognized as the oldest operating oil refinery in India, is situated in the Tinsukia district of Assam. It was established in the early 20th century and continues to play a significant role in the region's oil and gas industry. It is a testament to the long history of petroleum exploration and refining in Assam.

The Numaligarh Refinery is a major oil refinery located in Golaghat district, Assam, India. It is a significant contributor to the state's economy and a key player in India's refining industry.

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The Numaligarh Refinery is a major oil refinery located in Golaghat district, Assam, India. It is a significant contributor to the state's economy and a key player in India's refining industry.

The first census of Assam was conducted in 1872, along with the rest of India. This census was conducted asynchronously in different parts of the country.

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The first census of Assam was conducted in 1872, along with the rest of India. This census was conducted asynchronously in different parts of the country.

The Chenab and Jhelum rivers are both tributaries of the Indus River. The Indus River originates in the glaciers of the Kailash range near Mount Kailash and Lake Mansarovar in Tibet. It flows west and drains into the Arabian Sea. The total length of the Indus River is around 2,880 km, with 710 km flowing through India.

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The Chenab and Jhelum rivers are both tributaries of the Indus River. The Indus River originates in the glaciers of the Kailash range near Mount Kailash and Lake Mansarovar in Tibet. It flows west and drains into the Arabian Sea. The total length of the Indus River is around 2,880 km, with 710 km flowing through India.

The Singphos are divided into clans, each with a chief known as a "Gaum". The main clans include Bessa, Duffa, Luttao, Luttora, Tesari, Mirip, Lophae, Lutong, and Magrong. In 1823, Bessa Gaum was the Singpho chief who allowed Robert Bruce to take some tea plants and seeds. Some tea leaves were sent to the Botanical Gardens in Calcutta, where the plant was identified as a variety of tea. Tea experts credit Bisa Gam with the discovery of tea in Assam in 1823.

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The Singphos are divided into clans, each with a chief known as a "Gaum". The main clans include Bessa, Duffa, Luttao, Luttora, Tesari, Mirip, Lophae, Lutong, and Magrong. In 1823, Bessa Gaum was the Singpho chief who allowed Robert Bruce to take some tea plants and seeds. Some tea leaves were sent to the Botanical Gardens in Calcutta, where the plant was identified as a variety of tea. Tea experts credit Bisa Gam with the discovery of tea in Assam in 1823.

1950

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1950

15

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15