Irrigation Projects and Water Conservation

Introduction to Irrigation in Rajasthan

Rajasthan, the largest state of India by area, is predominantly arid and semi-arid, making irrigation a critical aspect of its agriculture and water resource management. The state receives an average annual rainfall of only about 575 mm, with western Rajasthan receiving less than 250 mm, which is among the lowest in the country. Due to the scarcity and irregularity of rainfall, the state has historically relied on various irrigation projects and traditional water conservation techniques to support agriculture and sustain livelihoods. Major sources of irrigation in Rajasthan include canals, wells, tube-wells, tanks, and traditional systems like johads and baoris. The state government, along with central assistance, has implemented several large, medium, and minor irrigation projects to maximize the use of surface and groundwater resources. The importance of irrigation in Rajasthan is underscored by the fact that agriculture employs over 60% of the state's population, and more than 70% of the cultivated area depends on irrigation. The development of irrigation infrastructure has not only improved agricultural productivity but also contributed to the socio-economic development of rural Rajasthan. In recent decades, water conservation has gained prominence due to declining groundwater levels, over-extraction, and the impacts of climate change. The government has launched several schemes and missions aimed at promoting water harvesting, efficient irrigation practices, and community participation in water management. ⭐ परीक्षा महत्वपूर्ण तथ्य: • Rajasthan covers 10.4% of India's area but has only 1.16% of the country's surface water • More than 60% of Rajasthan's population depends on agriculture • State government launched 'Mukhyamantri Jal Swavlamban Abhiyan' in 2016 • Remember the low rainfall figures and their impact on irrigation needs • Questions often compare Rajasthan's area and water resource percentages

• Rajasthan's average annual rainfall: 575 mm; Western Rajasthan: less than 250 mm
• Over 70% of cultivated area is irrigated; agriculture employs 60% of population
• Major irrigation sources: canals, wells, tube-wells, tanks, traditional water bodies
• State ranks first in India in area under canal irrigation (mainly due to Indira Gandhi Canal)
• Government focus on both irrigation expansion and water conservation post-2000
• 📌 Irrigation: Artificial application of water to soil for agriculture
• 📌 Water Conservation: Strategies to preserve and manage water resources efficiently
• 📌 Arid Region: Area with severe lack of available water

Major Canal Irrigation Projects

Canal irrigation is a major source of surface water irrigation in Rajasthan, especially in the north-western and eastern parts of the state. The most significant canal project is the Indira Gandhi Canal Project (IGNP), which is the largest in India and has transformed the Thar Desert into a fertile region. Other important canal systems include the Chambal Command Area, Gang Canal, Bhakra Canal, and Banas Canal. The IGNP, initially known as the Rajasthan Canal, was launched in 1958 and renamed in 1984. It draws water from the Harike Barrage at the confluence of the Sutlej and Beas rivers in Punjab and supplies water to the districts of Ganganagar, Hanumangarh, Bikaner, Jaisalmer, Barmer, and Jodhpur. The Chambal Canal System, based on the Chambal River, covers Kota, Bundi, Sawai Madhopur, and Baran districts. The Gang Canal, constructed in 1927, is one of the oldest and irrigates Ganganagar district. The Bhakra Canal, part of the Bhakra-Nangal Project, supplies water to Hanumangarh and Ganganagar. These canal systems have played a pivotal role in increasing the irrigated area, improving agricultural productivity, and supporting rural livelihoods. ⭐ परीक्षा महत्वपूर्ण तथ्य: • IGNP renamed from Rajasthan Canal in 1984 • Gang Canal constructed in 1927 by Maharaja Ganga Singh of Bikaner • Chambal Project is a joint venture of Rajasthan and Madhya Pradesh • Remember starting years, districts covered, and unique features of each canal • IGNP and Chambal Canal are frequently asked in map-based questions

• Indira Gandhi Canal Project (IGNP): India's largest canal project, started in 1958
• IGNP covers over 2 million hectares in north-west Rajasthan
• Chambal Canal System: Covers Kota, Bundi, Sawai Madhopur, Baran
• Gang Canal (1927): Oldest canal, irrigates Ganganagar district
• Bhakra Canal: Supplies water from Bhakra-Nangal Dam to Hanumangarh, Ganganagar
• 📌 Canal Irrigation: Distribution of water through man-made channels
• 📌 Command Area: Area irrigated by a canal system
• 📌 Harike Barrage: Point of water diversion for IGNP