Mahajati Sadan is an auditorium located on Chittaranjan Avenue in Kolkata, West Bengal, India.

[3] Subhas Chandra Bose made a request to Rabindranath Tagore to create an auditorium and in response to the request of Bose, Tagore laid the foundation stone of Mahajati Sadan 19 August 1939.

At the foundation-laying ceremony of Mahajati Sadan, Tagore told in his speech:[3] Today we assemble here to witness the beginning of the fulfilment of a long cherished dream.

Those who for years have toiled and suffered – laboured and sacrificed – so that India may be free, have long wished an abode to provide shelter and protection for their activities and to serve as a visible symbol of their hopes and ideal-dreams and aspirations.

More than once has the attempt been made to give us the home that we have wanted, but it has failed and it has been left to you to lay the foundation stone of the 'House of Nation'But, the disappearance of Bose stopped the construction work of this building.