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Upper Sind Frontier District was a district of the Bombay Presidency during British Rule in what is now the Sindh province of Pakistan. Sind is an old spelling of Sindh.
The district was the northernmost part of Sindh. It was bordered to the north and west by the Dera Ghazi Khan District of the Punjab and by Baluchistan, on the south by Sukkur District, and on the east by the river Indus.[1]