“Mahnar Bazar” is a municipality, block and Sub-division in Vaishali district of Bihar state in India. It is also the main market to all nearby ward areas and villages. It is a Vidhansabha Constituency headed by the Mla 'Dr. Achyuatanand Singh' . It comes under Hajipur Lok Sabha Constituency. It is a nagarpalika divided into many wards. It has its own police station and land registration office . The area has well-equipped government hospital and animal hospital.