Nabanna is a building in industrial township of Howrah which houses the temporary State Secretariat of West Bengal. It was inaugurated on 5 October 2013 by Chief Minister, Mamata Banerjee.The BuildingThe 14 storied building housed the government's garment park, Hooghly River Bridge Commissionerates and turned into the new secretariat within a month and a half by the PWD department. The chief ministers office is located on the top floor.