ThattaThatta. The city, formerly commanding the delta of the Indus, was the capital of Lower Sindh from the 14th century on wards. During the ruling period of the Samma dynasty, Thatta was the capital of Sindh for 95 years. Between 1592-1739, it was governed in the name of the Mughal emperors of Delhi. In 1739 however, following the Battle of Karnal, the province was ceded to Nadir Shah of Persia, after which Thatta fell into neglect as the Indus river started to silt up.