KARACHI: Former head of Pakistan’s biggest exchange company, H&H and All Pakistan Exchange Company Association, Haji Haroon, returned home on Monday after an 11-month disappearance. Officials of a sensitive institution in plain clothes reportedly took him away in their car about 11 months ago. No FIR or protest was lodged on the matter. The organisations he headed did not raise voice. After his recovery, his family refused to speak on the development. A source said the sensitive institution gathered from him information on transfer of millions of dollars abroad over the last 20 years and names of people involved in it. It has been learnt that Haroon has been warned against getting close to media.