Section 70(2) in West Bengal Municipal (Building) Rules, 2007
(2)A basement may be used(a)as a parking space,(b)as an air-conditioning plant room or room for other machines used for any building service or for other purposes,(c)as a space for a stand by generator for power supply,(d)as a storage space for house-hold or other goods of non-inflammable nature,(e)as a strong room or bank cellar,(f)as a dark room,(g)as a stack room in any library, or(h)for the purpose of a business building or mercantile building (retail) or an assembly building if it is air-conditioned and the top of the basement is at least 750 mm above ground level :Provided the fire safety norms as per National Building Code are complied with.
