"He is in the office of the DIG, Tihar Jail. He rested at night and he and his supporters have been given a hall...I am quite sure that Delhi Police officers have been talking to him," he told reporters.
"He has been released. He can go wherever he wants, he is free and officers from Delhi Police will be asking him where he wants to go," Singh said.
On Anna's demand to protest at JP Park, the Home Secretary said the Delhi Police will take a call on the issue.
The 73-year-old Gandhian, who was ordered to be released on Tuesday after being remanded in 7-day judicial custody, spent the night in the administrative block of the jail along with his associate Arvind Kejriwal.
Hazare was offered released last night after the Delhi Police issued warrants of release for him and seven of his associates, almost 13 hours after they were detained.
However, Hazare made it clear that he would come out of the prison only if he is given permission to stage the indefinite fast at the Jai Prakash Narain Park, the original planned venue for the hunger strike.