The taluka, along with the rest of Sindh, was for a time part of the Bombay Presidency of British India.

The Imperial Gazetteer of India, written over a century ago during British rule, describes the taluka as follows:[3] It was once a taluka in Sindh province’s Larkana District "Mehar.- Tāluka of Lārkāna District, Sindh, Bombay, lying between elev 162ft, with an area of 328 square miles.

The density, 178 persons per square mile, greatly exceeds the District average.

The tāluka is irrigated by the Western Nāra and one of its feeders, the stable crop is jowār and rice.

Mehar (Sindhi: ميهڙ) Taluka is administratively subdivided into 15 Union Councils.