where are tanks most widely used in india why
Irrigation tank An irrigation tank or tank is an artificial reservoir of any size. They are mainly found in India. (The word sagar refers to a large lake, usually man-made).[1] It can also have a natural or man-made spring included as part of a structure. Tanks are part of an ancient tradition of harvesting and preserving the local rainfall and water from streams and rivers for later use, primarily for agriculture and drinking water, but also for sacred bathing and ritual. Often a tank was constructed across a slope so to collect and store water by taking advantage of local mounds and depressions.[2] Tank use is especially critical in parts of South India without perennial rainfall where water supply replenishment is dependent on a cycle of dry seasons alternating with monsoon seasons.
Languages of India According to Census of India of 2001, India has 122 major languages and 1599 other languages. However, figures from other sources vary, primarily due to differences in definition of the terms "language" and "dialect". The 2001 Census recorded 30 languages which were spoken by more than a million native speakers and 122 which were spoken by more than 10,000 people.[13] Two contact languages have played an important role in the history of India: Persian[14] and English.[15] Persian was the court language during the Mughal period in India. It reigned as an administrative language for several centuries until the era of British colonisation.[16] English continues to be an important language in India. It is used in higher education and in some areas of the Indian government. Hindi, the most widely spoken language in a large region of India today, serves as the lingua franca across much of North and Central India.[17] However, there have been anti-Hindi agitations in South India, most notably in the states of Tamil Nadu.[18] There is also opposition in non-Hindi belt states towards imposition of Hindi in these areas.[19][20]