Tehreek-e-Taliban Pakistan (TTP) chief Hakimullah Mehsud, who was believed to have been killed in a US drone strike in South Waziristan in January, is alive, an Inter Services Intelligence (ISI) official has claimed.

"He (Hakimullah) is alive. He had some wounds but he is basically OK," The Guardian quoted the official, who spoke on conditions of anonymity, as saying.