A doctor and staff checking leakages in the heritage structure, have discovered a tunnel under the Sir JJ Hospital. The 130-year-old British tunnel was found in the Dinshaw Manik Petit building, which is now a nursing college. According to hospital officials, the tunnel is 200 metres long while its height is about 4.5 metres.

On Wednesday, Dr Arun Rathod, resident medical officer, and staff found the tunnel. Dr Rathod said, “We started looking for leakages on the rooftop and came down, after which we saw a slab with holes as if for ventilation in the building. We removed the slab and saw a narrow path. I crawled through the path and saw the tunnel. We informed senior officials and the message was conveyed to the Collector.”