"I am not satisfied with the CBI report...My husband had been killed brutally and I want justice," Azad told reporters here.
"I will appeal against it," she added.
Azad said that she would not concede defeat without knowing the truth.
CBI today filed a supplementary charge sheet in connection with the murder of Kunda DSP Zia-ul Haq before a special court here in which it has given a clean chit to Raghuraj Pratap Singh alias Raja Bhaiya.
Raja Bhaiya, who was Food and Civil Supplies Minister, had to resign from the Cabinet on March 4 after Haq's wife had accused him of being involved in the DSP's murder.
