PPT: Coastal Islands Notes | EduRev

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UPSC : PPT: Coastal Islands Notes | EduRev

 Page 1


Physical 
Divisions 
Himalayas
Indo- Gangetic Plain
The Peninsular Plateau
Coastal Plains
The Indian Islands
Page 2


Physical 
Divisions 
Himalayas
Indo- Gangetic Plain
The Peninsular Plateau
Coastal Plains
The Indian Islands
Indian Islands
? The major islands groups of India are Andaman and 
Nicobar Archipelago (A chain of islands similar in 
origin) in Bay of Bengal and Lakshadweep islands in 
Arabian Sea.
? Andaman and Nicobar Islands are southward 
extension of ArakanYoma
range [Myanmar][ArakanYoma in itself is an 
extension of Purvanchal Hills].
? Lakshadweep Islands are coral islands.
? Other than these two groups there are islands in 
Indo-Gangetic Delta [they are more a part of delta 
than islands] and between India and Sri Lanka 
[Remnants of Adams Bridge; formed due to 
submergence]
Page 3


Physical 
Divisions 
Himalayas
Indo- Gangetic Plain
The Peninsular Plateau
Coastal Plains
The Indian Islands
Indian Islands
? The major islands groups of India are Andaman and 
Nicobar Archipelago (A chain of islands similar in 
origin) in Bay of Bengal and Lakshadweep islands in 
Arabian Sea.
? Andaman and Nicobar Islands are southward 
extension of ArakanYoma
range [Myanmar][ArakanYoma in itself is an 
extension of Purvanchal Hills].
? Lakshadweep Islands are coral islands.
? Other than these two groups there are islands in 
Indo-Gangetic Delta [they are more a part of delta 
than islands] and between India and Sri Lanka 
[Remnants of Adams Bridge; formed due to 
submergence]
Andaman and 
Nicobar 
Islands
? This archipelago is composed of 265 big and small islands
? The Andaman islands are divided into three main islands 
i.e. North, Middle and South.
? Duncan passage separates Little Andaman from South 
Andaman.
? The Great Andaman group of islands in the north is 
separated by the Ten Degree Channel from the Nicobar 
group in the south
? Port Blair, the capital of Andaman Nicobar Islands lies in the 
South Andaman.
? Among the Nicobar islands, the Great Nicobar is the 
largest. It is the southernmost island and is very close to 
Sumatra island of Indonesia. The Car Nicobar is the 
northernmost.
Page 4


Physical 
Divisions 
Himalayas
Indo- Gangetic Plain
The Peninsular Plateau
Coastal Plains
The Indian Islands
Indian Islands
? The major islands groups of India are Andaman and 
Nicobar Archipelago (A chain of islands similar in 
origin) in Bay of Bengal and Lakshadweep islands in 
Arabian Sea.
? Andaman and Nicobar Islands are southward 
extension of ArakanYoma
range [Myanmar][ArakanYoma in itself is an 
extension of Purvanchal Hills].
? Lakshadweep Islands are coral islands.
? Other than these two groups there are islands in 
Indo-Gangetic Delta [they are more a part of delta 
than islands] and between India and Sri Lanka 
[Remnants of Adams Bridge; formed due to 
submergence]
Andaman and 
Nicobar 
Islands
? This archipelago is composed of 265 big and small islands
? The Andaman islands are divided into three main islands 
i.e. North, Middle and South.
? Duncan passage separates Little Andaman from South 
Andaman.
? The Great Andaman group of islands in the north is 
separated by the Ten Degree Channel from the Nicobar 
group in the south
? Port Blair, the capital of Andaman Nicobar Islands lies in the 
South Andaman.
? Among the Nicobar islands, the Great Nicobar is the 
largest. It is the southernmost island and is very close to 
Sumatra island of Indonesia. The Car Nicobar is the 
northernmost.
?THE BARREN AND NARCONDAM 
ISLANDS, north of Port Blair, are volcanic 
islands [these are the only active 
volcanoes in India
?Some of the islands are fringed with coral 
reefs. Many of them are covered with thick 
forests. Most of the islands are 
mountainous.
?Saddle peak (737 m) in North Andaman is 
the highest peak.
Page 5


Physical 
Divisions 
Himalayas
Indo- Gangetic Plain
The Peninsular Plateau
Coastal Plains
The Indian Islands
Indian Islands
? The major islands groups of India are Andaman and 
Nicobar Archipelago (A chain of islands similar in 
origin) in Bay of Bengal and Lakshadweep islands in 
Arabian Sea.
? Andaman and Nicobar Islands are southward 
extension of ArakanYoma
range [Myanmar][ArakanYoma in itself is an 
extension of Purvanchal Hills].
? Lakshadweep Islands are coral islands.
? Other than these two groups there are islands in 
Indo-Gangetic Delta [they are more a part of delta 
than islands] and between India and Sri Lanka 
[Remnants of Adams Bridge; formed due to 
submergence]
Andaman and 
Nicobar 
Islands
? This archipelago is composed of 265 big and small islands
? The Andaman islands are divided into three main islands 
i.e. North, Middle and South.
? Duncan passage separates Little Andaman from South 
Andaman.
? The Great Andaman group of islands in the north is 
separated by the Ten Degree Channel from the Nicobar 
group in the south
? Port Blair, the capital of Andaman Nicobar Islands lies in the 
South Andaman.
? Among the Nicobar islands, the Great Nicobar is the 
largest. It is the southernmost island and is very close to 
Sumatra island of Indonesia. The Car Nicobar is the 
northernmost.
?THE BARREN AND NARCONDAM 
ISLANDS, north of Port Blair, are volcanic 
islands [these are the only active 
volcanoes in India
?Some of the islands are fringed with coral 
reefs. Many of them are covered with thick 
forests. Most of the islands are 
mountainous.
?Saddle peak (737 m) in North Andaman is 
the highest peak.
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