A 150-metre-long bunker has been discovered under the Raj Bhavan premises in Mumbai, reported PTI. The 5,000-square feet barrack dates back to the British era and it comprises 13 rooms, long passages, scores of Lamp Recesses and a full-fledged drainage system with inlets for air and light. Although it is believed to have been sealed after India's independence in 1947, the bunker is still in good condition.

The discovery was made on August 12 after Governor CV Rao was informed about the existence of what they believed to be a tunnel under the house on Malabar Hill in south Mumbai. Public Works Department officials broke open a temporary wall that was erected to seal off the entrance to the place on its eastern side, and found the bunker. It had a 20-foot-tall gate and a ramp on its western side. The rooms in the bunker have names such as Shell Store, Gun Shell, Cartridge Store, Shell Lift, Pump and Workshop, among others.

Before Independence, the Raj Bhavan property was called Government House and was used by British Governors for residential purposes since 1885. Rao said he will call in experts to find ways to preserve the bunker. The 50-acre land on which the President's official residence stands is enveloped by the Arabian sea on three sides. The property houses a private beach and a mile of forest.