Geological Survey warns Hebbal tunnel project threatens 3-billion-year-old Lalbagh rock formation

The Geological Survey of India has raised concerns that the planned Hebbal tunnel project may pose a risk to the historic Lalbagh rock, a 3-billion-year-old granite formation located in Bangalore's Lalbagh Botanical Garden.

The GSI's warning highlights potential threats to the geological monument from tunnel construction activities in close proximity. The ancient rock formation is considered a significant natural heritage site and a key attraction at the garden.

Authorities will need to evaluate the survey's findings as they proceed with the infrastructure project, balancing developmental needs with preservation of the city's natural and geological heritage.