Bihar has implemented multiple schemes to improve gender ratio, including the national Beti Bachao Beti Padhao scheme and state-specific initiatives like the Mukhyamantri Kanya Utthan Yojana and others.

Bihar has East Champaran and West Champaran districts, but there is no district called Central Champaran. The state does not use the 'North Champaran' nomenclature for administrative division.

Nalanda district was created in 1972 by bifurcating the then-existing Sharif district. It is named after the famous ancient Nalanda University site.

The 73rd Amendment (1992) strengthened rural local government (Panchayati Raj), while the 74th Amendment strengthened urban local government (Municipal corporations). Both were implemented in Bihar.

Despite fiscal constraints, Bihar allocates significant budget funds to education and health sectors to address the state's development indicators, though actual implementation varies.

Bihar amended its Gram Panchayat Act to provide 50% reservation for women in local governance bodies, making it more progressive than the national 33.33% norm.

According to the 2021 Census, Bihar's sex ratio is approximately 900 females per 1000 males, which is below the national average and indicates gender imbalance.

Pataliputra served as the capital for multiple powerful dynasties including the Nanda, Maurya, and Gupta empires, making it a major center of power in ancient India.

The separation of Jharkhand in 2000 had significant implications: Bihar lost major mineral-rich areas and industrial hubs, reducing its revenue base and industrial capacity. However, it allowed Bihar to focus on agriculture, education, and service sectors. This reorganization affected resource allocation, tax revenue, and development priorities, though long-term impacts include better governance in smaller, manageable entities.

The Kosi River's unpredictable behavior severely impacts Bihar's agriculture. Effective strategies include: (1) Strengthening and maintaining embankments, (2) Afforestation in upstream areas to control erosion, (3) Community-based early warning systems, (4) Developing flood-resistant crop varieties, (5) Crop insurance schemes. International cooperation with Nepal for upstream management is also crucial.