But after sometime Ghaus Bakhsh's younger son Mir Hasil Bizenjo rose to prominence while Bizen Bizenjo faded into the background.
Those arrested from the National Awami Party leadership included Khan Abdul Wali Khan, Khan Amirzadah Khan, Syed Muhammad Kaswar Gardezi, Ghaus Bakhsh Bizenjo, Nawab Khair Bakhsh Marri, Mir Gul Khan Nasir, Sardar Ataullah Mengal, Habib Jalib, Barrister Azizullah Shaikh, Aslam Baluch (Shaysani), Aslam Kurd, Saleem Kurd, Sher Mohammad Marri (General Sherof), Najam Sethi, Saleem Pervez, Majid Gichki, Mir Abdul Wahid Kurd (read article) and Karnel Sultan Mengal.
Zulfiqar Ali Bhutto (the Prime Minister of Pakistan at that time) already had grievances with the NAP Leadership and after Nawab Akbar Bugti "revealed" in an address at Mochi Gate, Lahore that Ghaus Bakhsh Bizenjo (Governor of Balochistan at the time) and Sardar Ataullah Mengal (Chief Minister at the time) planned to separate Balochistan from Pakistan, Bhutto got his chance to persecute the leaders and workers of NAP.