Nabanna houses the temporary State Secretariat of the Government of West Bengal.

[1] It was inaugurated on 5 October 2013 by Chief Minister of West Bengal Mamata Banerjee.

[2][3] The 14-storey building housed the government's garment park, Hooghly River Bridge Commissioners (HRBC) and was turned into the new secretariat within a month and a half by the PWD department.

[4] The chief minister's office is located on the top floor.

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