Built at the cost of nearly a crore, the city's most expensive public toilet at Marine Drive will continue to cost the BMC a crap tonne of money. The civic body will flush Rs 1 lakh down its drains every month solely in maintenance charges. Officials plan to use advertising to offset the costs, but even this will require a further expense of nearly Rs 1 lakh to install smart mirrors that will also function as screens.

The art deco toilet was constructed at the cost of Rs 90 lakh by the Jindal Group and Samatech as part of their CSR initiative. It was then handed over to the BMC for maintenance and inaugurated last month. While its construction cost three times more than a regular toilet block, the loo will continue to earn its title as Mumbai's most expensive public toilet, thanks to exorbitant maintenance costs.