"ALL THAT entire Ground floor measuring about 425 Sq.Ft., Built-up area and 510 Sq.ft., Super built-up area of the two storied building and built and constructed at or upon the plot of land measuring about 1 Cottah and 12 Chittacks forming part of R.S.Dag No.254 under R.S.Khatian No.406 in Mouza Nimakpoktan under P.S. Tiljala in the District 24 Parganas South presently known and numbered as Municipal Premises No.3, Purbayan, Chingrighata, Canal South Road under Municipal Ward No.57 within the limits of Kolkata Municipal Corporation."