At least 50 children and women of Tanahun district are missing, police said.
Police said they had received complaints about disappearance of 82 persons in last seven months.
Among them, police succeeded to find only 32 women and children.
SI Sharada Karki of Women and Children Cell at District Police Office (DPO) said 42 women, two boys and a girl are still missing.
The DPO has sent sketches and details of the missing persons to police offices across the nation requesting them for the search, she added.
She also suspected that some of them might have been trafficked to other nations.