Shah, 33, began cleaning the beach in 2015 with the help of a neighbor. Over time, he was joined by more than 1,000 volunteers including local Versova residents, slum-dwellers, politicians, Bollywood celebrities and schoolchildren.
The volunteers have also cleaned 52 public toilets at the beach and planted 50 coconut trees. Shah says he wants to plant 5,000 coconut trees there and turn it into a "coconut lagoon like it used to be."
"What I do is I pick up plastic. This is how I've been spending my weekends since 2015 and I love it," Shah said.
Cleanup sessions are held regularly on weekends in events that Shah calls "dates with the ocean."
"Because of the direction of the wind, a lot of garbage lands at Versova. The beach is surrounded by slums so lots of garbage comes from there. It was not a very popular beach in terms of visitors and tourists, so its cleanup has been ignored by the municipal corporation," said Mumbai Marine conservationist Pradip Patade.
According to the UNEP, 13 million tons of plastic waste finds its way to the world's oceans every year, which is equivalent to dumping two garbage trucks of plastic waste into the ocean every minute.
It poses a threat not just to marine wildlife and ecosystems but also to humans, as some marine litter makes its way into the diet in the form of fish or seabirds.
In a step toward tackling India's massive waste problem, the country's National Green Tribunal banned the use of disposable plastics in the capital New Delhi in January this year.