She was elected Prime Minister of Pakistan two times . She was sworn in for the first time in 1988 but removed from office 20 months later under orders of then-president Ghulam Ishaq Khan on a belief that she was corrupt . Bhutto was sworn in as Prime Minister for the first time in 1988 at the age of 35 , but was removed from office 20 months later under the order of then-president Ghulam Ishaq Khan on grounds of alleged corruption .