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
Geography of Bihar which was part of Bihar until 2000 but now is part of a separate state called Jharkhand. Bihar has notified forest area of 6,764.14 km², which is 7.1 per cent of its geographical area. The sub Himalayan foothill of Someshwar and Dun ranges in Champaran district another belt of moist deciduous forests. These also consists of shrub, grass and reeds. Here the rainfall is above 1,600 mm and thus promotes luxuriant Sal forests in the favoured areas. The hot and dry summer gives the deciduous forests. The most important trees are Shorea Robusta (Sal), Shisham, Cedrela Toona, Khair, and Semal.