1946 Bihar riots and 1940s; in the 1945 alone, 1,809 riots took place in Uttar Pradesh, and 3,176 riots took place across the country in 1946. On 16 August 1946, the All-India Muslim League proclaimed Direct Action Day in Calcutta, as part of their demand for a separate state for Muslims. Major riots ensued across the city, with 4,000 people being killed. These riots triggered communal violence across the country, including in Bihar. The Noakhali riots that occurred from 10–21 October also provoked violence in Bihar. The trigger for the riots that occurred in June was a dispute concerning a false allegation that
Bihar distance inside Nepal and to the north of Bihar, the mountains influence Bihar's landforms, climate, hydrology and culture. Central parts of Bihar have some small hills, for example the Rajgir hills. To the south is the Chota Nagpur plateau, which was part of Bihar until 2000 but now is part of a separate state called Jharkhand. Bihar has notified forest area of , which is 7.2% of its geographical area. The sub Himalayan foothill of Someshwar and the Dun ranges in the Champaran district are another belt of moist deciduous forests. These also consist of scrub, grass and reeds. Here