if you do some research then chaudhry zahoor elahi was imprisoned and his properties were seized because he criticised the Bhutto government and believed the Bengalis deserved independence as the Pak government wasn't treating them as the way they deserved. and later after zia ul haq came to power. chaudhry zahoor elahi was assassinated by a militant group 'al zulfiqar' led by zulfiqar Ali Bhutto's son mir murtaza Bhutto