The ADM of the place, B N Yadav said that Yunus’ body was exhumed from his grave and has been sent for post-mortem. The task of exhuming the body was conducted in the presence of a Qazi (an Islamic religious leader).
District authorities met relatives Yunus on Saturday, seeking consent to exhume his body for a post-mortem examination, officials said.
Yunus was a witness in the Unnao rape case that was registered after the death of the father of a minor, who had alleged rape by BJP MLA Kuldeep Singh Sengar.
The rape victim's father died in April after being beaten up, allegedly by Sengar's brother and others.
Yunus had claimed to have seen the rape victim's father being beaten up by the BJP MLA's brother.
The rape victim's uncle had alleged foul play after the death of Yunus last week.
On Twitter, Congress president Rahul Gandhi termed it mysterious and his burial hurried.
The man's family however said he had died due to a liver ailment for which he was being treated.
The rape victim's uncle had written to police on Wednesday, demanding a post-mortem examination.
Earlier, the police had said that the family members had submitted medical prescriptions, indicating that the man was undergoing treatment for liver cirrhosis.
His brothers had claimed that the rape victim's uncle has said they will get Rs 10-12 lakhs if they agree to the post-mortem examination.
(With inputs from PTI)