An RTI reply has revealed that the maintenance cost of Miyawaki forests is too high for the BMC. The Brihanmumbai Municipal Corporation (BMC) spent Rs 10.6 crore to develop 26 Miyawaki forest plots in the eastern suburbs, and an additional Rs 6.59 crore for their maintenance for two years.

The maintenance cost excludes security charges. In December 2019, the standing committee of the BMC approved a proposal to appoint two contractors for Miyawaki plantations, one for the city and western suburbs and another for the eastern suburbs. According to the proposal, the BMC was ready to pay Rs 14,74,11,318  and Rs 20,69,24,647 respectively. So the total amount to be spent was Rs 35,43,35,965. Now it is clear that 40 per cent of the total amount was only for maintenance for two years and it is almost 70 per cent of the development cost.