In order to set up underground parking spaces, the city's Parking Authority plans to first carry out a feasibility study and then get down to accepting proposals from builders, who would be able to avail additional FSI in exchange for constructing the parking lots, as mentioned in the Development Control Regulations (DCR-2034).

Based on the accommodation reservation scheme mentioned in the DCR-2034, builders can avail of additional FSI in exchange for constructing up to two floors of underground parking beneath an open space. This would be applicable to builders who will construct a building on 30 per cent of a plot after consuming its available FSI, and hand over the remaining 70 per cent to the Brihanmumbai Municipal Corporation (BMC) underneath which the parking lots would be constructed.