Siwan is a city and the district headquarters of the Siwan district in the Indian state of Bihar. It is additionally square headquarter of Siwan square. It is one out of three regions situated in Siwan area which is Nagar Parishad, the two different regions are Nagar Panchayat. It is found near Uttar Pradesh. The town is known for its incredible past particularly for First President of Indian Republic who had a place with Ziradei. Siwan Nagar Parishad is a piece of Siwan Block, which comprises 1 Nagar Parishad and numerous towns. Siwan Block is one of 13 squares arranged in Siwan Subdivision of Siwan District.
he aggregate region of the city is 13.05 square kilometers 5.04 sq mi and the aggregate populace of city is 135066 starting at 2011 Census of India. The city is separated into 38 wards. Siwan got its name presumably from Shiva man, who was a ruler around there until Babar's landing. The Siwan Municipal Council SMC was set up in 1924. Siwan locale cut out from Saran region in 1972 and the Siwan city turned into the base camp. The climate of Siwan is gentle and by and large warm and mild. This atmosphere is thought to be Cwa as per the Koppen-Geiger atmosphere grouping.