UPSC Mains 2025 · GS I · Q17 · 15 marks · 250 words

Discuss the distribution and density of population in the Ganga River Basin with special reference to land, soil and water resources.

हिन्दी में

भूमि, मिट्टी और जल संसाधनों के विशेष संदर्भ के साथ गंगा नदी बेसिन में जनसंख्या वितरण और घनत्व पर चर्चा कीजिए ।

How a topper answered the closest question

Toppers wrote this one in a test series: “The groundwater potential of the Gangetic Valley is on a serious decline. Analyse how this decline may affect India's food security”

AakritiAIR 93 · CSE 2025 · 205 wordsTheir whole copy

Opening

The gangetic valley, a fertile zone, is a major food belt of India. ≈ 90% groundwater is used for agriculture in this region.

groundwater potential is on a decline - causes:

Body · points

(1.) Contamination eg. Uranium levels very high in Bihar, & west Bengal (2.) overuse of groundwater Eastern India - region with high number of critical units i.e. 90% to >100% use (CGWB). (3.) Population density very high eg. U.P., Bihar, west Bengal

(4.) Poor integrated water management. eg. only 32% water (rainfall) is harvested in India

(5.) Hardrock plateaus eg. Madhya Pradesh region

(6.) Rapid concretization & deforestation support urbanization eg. in uttrakhand

(7.) Heavy siltation → lower rejuvenation ability of groundwater eg. near Farakka barrage.

Impact on food security

Diagram
[Map of Indo-Gangetic plain] - Crops grown: - Pulses - Sugarcane - Maize - Wheat - Rice - Ganga floodplain

(1.) Water decline → less water availability for cropping (Input unavailability) → decline in food availability

(2.) Increased pressure on surface water → Drinking & sanitation water crisis → health problems → reduced nutrient absorption.

(3.) Interstate conflicts will rise → instability → agriculture productivity stagnated

(4.) Use of contaminated ground water → nutritional deficiency

Way forward

(1.) Rainwater harvesting is indispensible (2.) Interstate coordination for rejuvenation planning.

Close · a way forward

Steps like Namame Gange & River City Alliance are steps in right direction for "Jal-Anna Suraksha".

How toppers approach this question, and more on its topic: open the question.

Source: UPSC, Civil Services (Main) Examination 2025, General Studies Paper I, Q17. The paper on upsc.gov.in. Themes and links to toppers’ answers are by UPSC Grade, not by UPSC.