The Mahadev Temple at Tambdi Surla in Mollem is the most ancient temple in Goa.
Built in the 12th century, the beautifully carved and perfectly proportioned black basalt temple is dedicated to Lord Shiva. There is a Shiva Linga mounted on a pedestal inside the inner sanctum and a headless Nandi (bull, Shiva's vehicle) in the centre of the mandap, surrounded by four matching columns. The river Surla flows nearby and can be reached via a flight of stone steps. The festival of Mahashivratri is celebrated with great pomp and gaiety at the temple by the locals from surrounding villages.