Original sentence: It is generally believed that after Bhutto's ouster Kasuri's case against Bhutto was used as a pretext by General Zia ul Haq to charge Bhutto with murder, but the reality is not so.Kasuri's case was closed during the Bhutto regime, but after Bhutto was ousted, the Mother of Ahmed Raza Kasuri re-opened the case against Bhutto, which is  clear evidence that General Zia-ul-Haq had no involvement  in the re-opening of the case
Edited sentence: It is generally portrayed that after Bhutto's ouster Kasuris case against Bhutto was used as a pretext by General Zia ul Haq to charge Bhutto with murder, but the reality is not so.Kasuri's case was closed during the Bhutto regime, but after Bhutto was ousted, the Mother of Ahmed Raza Kasuri re-opened the case against Bhutto, which is a clear evidence that General Zia-ul-Haq had no involvement whatsoever in the re-opening of the case