Where is the Vembanad lagoon located?

Appeared in: Bihar NHM CHO-2025

Explanation

Vembanad Lagoon is the longest lake in India and is located in the state of Kerala.
The coastline of the state of Kerala is geographically known as the Malabar Coast.
The lagoon is a key feature of the Kerala backwaters, which are a network of interconnected canals, rivers, lakes, and inlets lying parallel to the Malabar Coast.
Therefore, the Vembanad Lagoon is correctly identified as being located on the Malabar Coast.

Option A: The Konkan Coast is the western coastline of India that includes the states of Maharashtra and Goa. It is located to the north of the Malabar Coast.
Option B: The Coromandel Coast is on the southeastern side of the Indian peninsula, bordering the Bay of Bengal. It includes states like Tamil Nadu and Andhra Pradesh.
Option C: The Karnataka Coast, also known as the Kanara Coast, is the coastal region of the state of Karnataka. It is situated between the Konkan Coast to the north and the Malabar Coast to the south.

Visual 1: Map - A map of India highlighting the different coastal plains (Malabar, Konkan, Coromandel, and Kanara/Karnataka) to provide a clear geographical context and show the location of Vembanad Lagoon in Kerala.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Geography of Indian Coastal Plains as background academic context rather than a clinical decision trigger.
Geographical & Economic Relevance: The Malabar Coast is historically significant for its spice trade and is characterized by numerous backwaters (lagoons) like Vembanad, which are crucial for local ecology and economy.
Ecological Importance: Vembanad Lagoon supports a large-scale agricultural system (Kuttanad below-sea-level farming), fisheries, and is a major hub for tourism and inland navigation, impacting the livelihoods of millions.
What if? Scenario: If the question had asked about the location of Chilika Lake, the answer would be the Eastern Coastal Plain (on the coast of Odisha), as it is the largest brackish water lagoon in Asia, distinct from the backwaters of the Malabar Coast.

How to Approach the Question

First, identify the key geographical feature in the question: 'Vembanad lagoon'.
Recall or determine the state where this feature is located. Vembanad is famously situated in Kerala.
Next, identify the geographical name for the coastline of that state. The coast of Kerala is known as the Malabar Coast.
Compare this with the given options to find the correct match.
Eliminate the other options by recalling the locations of other coastal plains: Konkan (Maharashtra/Goa), Coromandel (southeast coast), and Karnataka (north of Kerala).

Concept Tested & Keywords

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Practise the full Bihar NHM CHO-2025

Attempt every question from this paper in a timed mock, then review the full solution for each one.