Khagaul Nagar Parishad has total administration of over 7,951 houses to which it supplies basic amenities like water and sewerage.

It is also authorized to build roads within Nagar Parishad limits and impose taxes on properties coming under its jurisdiction.

In ancient times, before Christ, Khagaul was called Kusumpura or Kusumpur, near Pataliputra, which was the capital city of the mighty Magadh Empire.

[citation needed] Shakhtar and Chanakya (also known as Kautilya or Vishnugupta), two famous Prime Ministers of the Magadh Empire belonged to Kusumpur or present-day Khagaul during Fourth Century BC.

Under the guidance of Chanakya, the mighty Magadh Empire was spread from present-day India, Bangladesh, Pakistan, and Afghanistan up to Iran after defeating the forces of Alexander and Seleucus.

Chanakya was a great scholar, economist, administrator, jurist, lawmaker, and a very sharp-minded nationalist and shrewd politician.

He flourished in Kusumapura—near Pataliputra (Patna), then the capital of the Gupta dynasty—where he composed at least two works, Aryabhatiya (c. 499) and the now lost Aryabhatasiddhanta.

[citation needed] Aryabhatasiddhanta circulated mainly in the northwest of India and, through the Sāsānian dynasty (224–651) of Iran, had a profound influence on the development of Islamic astronomy.

The topics include definitions of various units of time, eccentric and epicyclic models of planetary motion (see Hipparchus for earlier Greek models), planetary longitude corrections for different terrestrial locations, and a theory of " lords of the hours and days" (an astrological concept used for determining propitious times for action).

Topics include the prediction of solar and lunar eclipses and an explicit statement that the apparent westward motion of the stars is due to the spherical Earth's rotation about its axis.