Bihar has 38 districts as per the latest administrative reorganization. This was increased from 36 after the creation of new districts in recent years.

The Ganga is the longest river flowing through Bihar with a length of approximately 420 km within the state.

Nalanda University was an ancient Buddhist university located in Nalanda district. It was one of the world's oldest universities.

According to the 2011 Census, Bihar has the lowest literacy rate among Indian states at 53.87%, with male literacy at 66.40% and female literacy at 39.95%.

Bodh Gaya is located in Gaya district of Bihar. It is believed to be the place where Gautama Buddha attained enlightenment.

Rice is the primary agricultural product of Bihar, with the state being a major rice producer in India due to favorable climate and fertile alluvial soil.

Santhals are a major scheduled tribe in Bihar, primarily concentrated in the Santhal Pargana region. They have a distinct culture, language, and traditions.

Nalanda University was one of the world's oldest universities, located in present-day Nalanda district. It was a major center of Buddhist learning until its decline in the 12th century.

ICDS in Bihar targets children in the 0-6 age group with nutritional support, pre-school education, and health services through anganwadi centers.

The Brahmaputra flows through Assam, not Bihar. The Kosi, Burhi Gandak, and Ghaghara are major tributaries of the Ganges that flow through Bihar.