The evidence of water tax is provided by the inscriptions of gahadavalas occupy a very important place in Indian history. They ruled for over a century (AD1080-1197), over a vast region of North India, which extended from the western bank of Yamuna in the west to patna Monnghyr and Bodhgaya in Bihar in the east. It extended from the foothills of the Himalayas in the north to Beghelkhanda in Madhya Pradesh in the south. ....Read more