Mithila, the ancient kingdom mentioned in Hindu scriptures, corresponds to the Darbhanga and Madhubani regions of present-day Bihar. It was the kingdom of King Janaka and the birthplace of Sita according to Hindu mythology.

While Medha Patkar is primarily known for the Narmada Bachao Andolan, movements in Bihar have focused on addressing Kosi River floods and environmental issues. The question tests knowledge of environmental movements in the region.

James Grant conducted the first systematic census and survey of Bihar during British rule, contributing significantly to the administrative organization of the region.

Sikandar Shahi coins belong to the Delhi Sultanate period, specifically from the reign of Sikandar Lodi. These coins have been discovered in Bihar and indicate the extent of sultanate control over the region.

Using compound growth formula: P = P₀(1 + r)ⁿ where P₀ = 103 million, r = 0.025, n = 5 years. P = 103 × (1.025)⁵ = 103 × 1.131 ≈ 116.5 million ≈ 116 million

Anugrah Narayan Sinha served as the first Chief Minister of Bihar from 1946 to 1948 during the transition period before India's independence.

During the 15th century, the Bahmani Sultanate and later the Bengal Sultanate's influence in Bihar led to significant changes in administrative, military, and cultural practices in the region.

Bahadur Shah Zafar, the last Mughal emperor, was imprisoned and later exiled to Rangoon after the Revolt of 1857. His life ended in exile, representing the end of Mughal rule.

Bihar, particularly through Buddhist monasteries at Nalanda, was instrumental in transmitting martial and philosophical teachings that influenced martial arts traditions across Asia through Buddhist monks like Bodhidharma.

According to the 2011 Census, Bihar's literacy rate was 47.53%, which is one of the lowest among Indian states, reflecting challenges in education infrastructure.