Eta wall, a town of N.W. Hindustan, capital of a district of the same name in the province of Agra, 70 miles S.E. of Agra. The town, on the bank of the Jumna, occupies a number of heights separated by deep ravines. It was once of importance, but is now decaying. The district is watered by the Jumna and the Ganges, and the climate, much modified by recent planting of trees, is good from October to May, but in spring hot winds prevail. Cotton, indigo, sugar cane, and many European fruits are the chief productions. It was once a favourite resort of Thugs, and was an important station of the revolted Sepoys during the Indian Mutiny.