Mamun, chief assistant of BTTB at Mohakhali wireless transmission region, went out of his home at Indira Road in the city's Farmgate area for a morning walk on August 10 last year and has remained missing since then.

In a press release, the family members alleged that although they had filed general diaries with Tejgaon Police Station more than once, the police did not take any effective measures to find out Mamun. Indifferent attitude of the police has also disappointed them, they added.

Many people have also tried to cheat the family members during their efforts to search for Mamun, the family members said, adding that they asked for police action against the frauds, but to no avail.

Mamun, the eldest son of late Lt AM Ataul Haque, a freedom fighter and acting chief of Bangladesh Navy after independence, is a bachelor.

His mother Begum Fazilatunnessa and other family members, who are eagerly waiting for his return, have requested those knowing his whereabouts to call at 01711177609.