The original name Yajuar comes from Yajur vedasaya agara yasya Yajuara, which means "Village of people who know Yajurveda one of the four Veda in Hinduism".

The Yajuar region is situated in the district of Muzaffarpur in Bihar, India.

Badi pokhar where the God of the village Shri Dihbaad Baba's temple is situated under the Peepal tree.

Some of the other important religious places in the village are yajuar kali asthan where kali puja is celbrated on diwali Sarvnath Mahadev asthan near water tank, Bhagvati Sthan, Dev nagar (near Gudri Bazar Bhira), Dhelmara Gosai, and Chaupaaid Mahadev sthan, Hanuman Mandir in Panchobh Tola near the high school.

Devi Shakti peeth "Chamunda Mata mandir" is situated in Katra (block office) which is 8 km (5.0 mi) from Yajuar.

Durga Puja is celebrated in the premises of the Bari Pokhar temple while Kali Puja is celebrated in Rajkiya Madhya Vidyalaya yajuar Anusuchit (Popularly known as Harijan school) Agriculture is the main economic activity of this village.

The main crops are rice, wheat, pulses, moong, urad, arhar, jute (with a recent decline in its production), and maize.

& one college Ram Janki inter Mahavidyalaya for higher education which is situated near badi pokhar.