The Chota Nagpur Plateau is an eastern Indian plateau that encompasses much of Jharkhand as well as nearby sections of Bihar, Odisha, West Bengal, and Chhattisgarh. To the north and east of the plateau is the Indo-Gangetic Plain, while to the south is the Mahanadi river basin. The climate in the Chota Nagpur Plateau is pleasant. The Son river travels through the plateau and enters the Ganga. The plateau's average elevation is 700 meters above sea level. This article will explain to you about The Chota Nagpur Plateau which will be helpful in Geography preparation for the UPSC Civil service exam.

The Chota Nagpur Plateau

• The Chotanagpur plateau is the Indian Peninsula's north-eastern extension.
• Mostly in Jharkhand, northern Chhattisgarh, and West Bengal's Purulia area.
• The Son river travels through the plateau and enters the Ganga.
• The plateau's average elevation is 700 meters above sea level.
• This plateau is mostly made up of Gondwana rocks.
• The plateau is drained in various directions by multiple rivers and streams, resulting in a radial drainage system.
• Rivers such as the Damodar, Subarnarekha, North Koel, South Koel, and Barkar have formed enormous drainage basins.
• The Damodar River flows through the center of this region, forming a rift valley from west to east.
• The Gondwana coal fields, which supply the majority of India's coal, are located here.
• The Hazaribagh plateau, located north of the Damodar river, has an average height of 600 meters above mean sea level.
• There are solitary hills on this plateau. Because of large-scale erosion, it seems to be a peneplain.
• To the south of the Damodar Valley, the Ranchi Plateau rises to around 600 m above mean sea level. Where the city of Ranchi (661 m) is located, the majority of the terrain is rolling.
• Monadnocks (an isolated hill or ridge of erosion-resistant rock rising above a peneplain) interrupt it in spots. Ayers Rock in Australia is an example of a conical hill.
• The Rajmahal Hills, which comprise the northwestern boundary of the Chotanagpur Plateau, are largely formed of basalt and are covered with basaltic lava flows.
• They go north-south and reach an elevation of 400 m on average (the highest mount is 567 m). These hills have been subdivided into plateaus.

Chota Nagpur Plateau

The Chota Nagpur Plateau - Formation

• The Chota Nagpur Plateau is a continental plateau or a large region of land pushed above the surrounding country.
• The plateau was produced by continental uplift caused by forces deep inside the earth.
• The Gondwana substrates provide evidence of the plateau's ancient origin.
• It is a portion of the Deccan Plate, which broke away from the southern continent during the Cretaceous period and began a 50-million-year trip that was cut short by a collision with the Eurasian continent.
• This ecoregion is located in the northeastern section of the Deccan Plateau, which was the earliest point of contact with Eurasia.

Chota Nagpur Plateau

Significance of the Chota Nagpur Plateau

• The Chota Nagpur plateau is located between the Ganges (Ganga) and Son river basins to the north and the Mahanadi River to the south.
• The coal-bearing, faulted Damodar River valley cuts through its heart, from west to east.
• Numerous streams have eroded the uplands, resulting in a peneplain (an area reduced virtually to a plain) with isolated hills.
• The Chota Nagpur region possesses India's most valued concentration of mineral resources.
• The Damodar valley contains large coal deposits, while the Hazaribagh area is one of the world's primary supplies of mica. Copper, limestone, bauxite, iron ore, asbestos, and apatite are among the other minerals.
• Bokaro, in eastern Jharkhand, is home to a massive thermal power plant and a significant steel mill.
• Railroads cross the plateau, linking Kolkata (Calcutta) in West Bengal to the southeast and Patna in Bihar to the north, as well as other towns in the south and west.

Conclusion

The Chota Nagpur Plateau is an eastern Indian plateau. The Chota Nagpur area has the most valuable concentration of mineral resources in India. Centuries of intensive farming have decimated most of the plateau's natural flora, while some significant woods remain. Economically significant forest products include tussah silk and lac.

FAQs

MCQs

1. The Chota Nagpur Plateau is primarily composed of which type of rocks?

A. Sedimentary rocks
B. Metamorphic rocks
C. Precambrian rocks
D. Volcanic rocks

2. Which river is commonly associated with the Chota Nagpur Plateau?

A. Narmada
B. Godavari
C. Damodar
D. Yamuna

3. What is the average annual rainfall of the Chota Nagpur Plateau?

A. 500 mm
B. 1,000 mm
C. 1,300 mm
D. 2,000 mm

4. Which city is a major industrial hub located on the Chota Nagpur Plateau?

A. Delhi
B. Kolkata
C. Jamshedpur
D. Hyderabad

5. What type of vegetation is predominantly found on the Chota Nagpur Plateau?

A. Mangroves
B. Coniferous forests
C. Tropical forests
D. Grasslands

GS Mains Questions and Model Answers

Q1: Discuss the economic significance of the Chota Nagpur Plateau with a focus on its mineral resources.

Answer: The Chota Nagpur Plateau is one of the most important mineral-rich regions in India. It is renowned for its vast deposits of coal and iron ore, which have made it a hub for heavy industries such as steel production, cement manufacturing, and thermal power generation. Cities like Jamshedpur, Bokaro, and Ranchi owe their industrial development to the plateau’s mineral wealth. The region's coal reserves fuel several thermal power plants, contributing significantly to India's energy needs. The abundance of raw materials has also attracted foreign investment, making the plateau vital to both regional and national economic growth.

Q2: Analyze the topographical features of the Chota Nagpur Plateau and their impact on the region's drainage system.

Answer: The Chota Nagpur Plateau is characterized by its uneven terrain, with rolling hills and valleys. The average elevation of the plateau ranges between 500 and 1,100 meters. This uneven topography has a profound impact on the region’s drainage system. Major rivers like the Damodar, Subarnarekha, and Koel originate in the plateau and flow through its valleys, creating deep gorges. These rivers are critical for irrigation, drinking water supply, and industrial use. However, the rugged terrain also makes river navigation challenging and has contributed to localized flooding in certain areas during the monsoon season.

Q3: Explain the role of the Chota Nagpur Plateau in supporting biodiversity and ecological balance.

Answer: The Chota Nagpur Plateau supports rich biodiversity due to its tropical forests, which are home to a wide variety of flora and fauna. The forests, consisting primarily of sal, teak, and bamboo, provide a habitat for species such as tigers, elephants, and several species of birds. These forests play a crucial role in maintaining the ecological balance by aiding in carbon sequestration, soil conservation, and water regulation. The plateau’s forests also contribute to the livelihoods of indigenous communities through non-timber forest products like honey, medicinal plants, and bamboo. However, deforestation and mining activities pose significant threats to the region’s ecological balance.

Previous Year Questions on Chota Nagpur Plateau

1. UPSC CSE Prelims 2021

Question: The Damodar River, which flows through the Chota Nagpur Plateau, is also known as the “Sorrow of Bengal” because of which reason?
A. Its high siltation levels
B. Frequent floods caused by it
C. Its unpredictable course
D. Its association with industrial pollution

Answer: B

Explanation: The Damodar River is referred to as the “Sorrow of Bengal” due to the frequent flooding it caused in the Bengal region before the construction of dams and barrages to regulate its flow.