HISTORY

In 1025 Mahmud raided Gujarat, plundering the Somnath temple and breaking its jyotirlinga.

The first group to invade India were the Aryans, who came out of the north in about 1500 BC. The Aryans brought with them strong cultural traditions that, miraculously, still remain in force today. They spoke and wrote in a language called Sanskrit, which was later used in the first documentation of the Vedas.

Answer Well Water Irrigation system: Wells are mainly found in U. P., Bihar, Tamil Nadu, etc. … Tank Water Irrigation system: In the Deccan, water-reservoirs are made by constructing dams. … Inundation Irrigation system: … Perennial Canals Irrigation System: … Multi Purpose River Valley Projects :

(iv) How are flood plains formed? Answer: When a river overflows its banks, it results in the flooding of the area surrounding it. When it floods, it deposits a layer of fine soil and other material called sediments. Thus, forming a fertile layer of soil called flood plains.

The term “surface irrigation” refers to systems that deliver water to crops using a gravity-fed, overland flow of water. Surface irrigation conveyance and distribution systems are among the first engineering innovations of humans, dating back to more than 6,000 years ago.

lift irrigation systemExplanation: In lift irrigation system mechanical means are used to supply water to the crops for irrigation. This is quite the case of wells where by mechanical means water is supplied for irrigation.

Flood irrigation supplies water to a field through pipes or ditches. Water flows over the ground and through the crop. Levees and gates are often used to control water depth. In Missouri, flood irrigation is commonly used in rice fields by cascade or side-let methods.

The 3 Tamil Kings, or the 3 authorised by Heaven, or World of the 3, essentially called Moovendhar, suggests the triad of Chola, Chera and Pandya who ruled the legislative issues of the antiquated Tamil nation, Tamilakam, from their three nations or Nadu of Chola Nadu, Pandya Nadu and Chera Nadu in southern India.

On 26 January 1950, it was formed as Madras State by the Government of India. As a result of the 1956 States Reorganisation Act, the state’s boundaries were re-organized following linguistic lines. The state was finally renamed Tamil Nadu on 14 January 1969 by C.N. Annadurai, Chief Minister.

According to Hindu legend, Tamil or in personification form Tamil Thāi (Mother Tamil) was created by Lord Shiva.