The University of Calcutta, informally known as Calcutta University (CU), is a public state research university located in Kolkata, also known as Calcutta, in West Bengal, India. It has 151 affiliated undergraduate colleges and 16 institutes in Kolkata and nearby areas. It was established on 24 January 1857 and is the oldest multidisciplinary university of the Indian Subcontinent and the Southeast Asian Region. Today, the university's jurisdiction is limited to a few districts of West Bengal, but at the time of its establishment, it had a catchment area ranging from Kabul to Myanmar. It is accredited as an "A" grade university by the National Assessment and Accreditation Council (NAAC).