Some of the captives say they were in the clutches of the Islamic extremists for as long as a year.
One young woman, Yagana Kyari, says she was just "waiting for death" because the jihadis constantly threatened to kill their victims.
Army spokesman Col. I. T. Gusau says 12 people were rescued on Wednesday and 59 on Thursday from villages about 40 kilometers (25 miles) from Maiduguri, the biggest city in the northeast.
