Researchers say these tools could date back to approximately 15,000 years.

Archaeologists have found stone tools dating back to the Middle Stone Age in north Mumbai, indicating human habitation in the area 10,000 to 15,000 years ago.

The microliths, or minute flint stone tools, were found on a hill next to Manori beach, which experts believe could have been a possible factory site for such implements.

Researchers said the findings were important in tracing Mumbai’s early days and the kind of habitation the islands had in the Mesolithic era.

“Tool-making debris is found along with blade tools there, which is why it is believed to be a factory site. Through comparative dating of data, it can be said that these tools could date back to approximately 15,000 years,” said Kurush Dalal, assistant professor (archaeology) and coordinator, Centre for Extra Mural Studies (CEMS), University of Mumbai.

This is part of the Salsette Archaeological Exploration Project by the CEMS at the Centre for Archaeology of University of Mumbai, Sathaye College, and the India Study Centre Trust (INSTUCEN). Salsette is the region between Mahim and Vasai creek, mostly consisting of the Mumbai Suburban district.