Biscomaun Bhawan is the tallest building in Patna and Bihar. It is a public building that houses many of the administrative offices of Bihar. It is 71 meters high. It houses many important offices of the Bihar government, the Government of India, some private company offices, and the Nalanda Open University. It is the only building with a revolving restaurant (Pind Balluchi), and a software park in all of Bihar and Eastern India.Important Offices and Businesses Director General of Foreign Trade Nalanda Open University IGNOU Bihar state centre Inland Waterways Authority of India: Bihar state office Central Information Council of East Central Railway Zone Pind Balluchi Revolving Restaurant BMSICL