'Mystery tunnel' underneath Delhi Assembly building needs to be scientifically investigated: Experts

Red Fort link theory seems implausible as distance between the two structures is over six km, the official said.

Historians and heritage experts, including those from the ASI, have called for carrying out a scientific investigation of a tunnel located beneath the sprawling building of the Delhi Assembly, which has again captured the imagination of the people. The 'mystery tunnel', first reported around 2016, has sparked multiple speculation, and experts said it will be too early to draw any conclusion unless the structure is thoroughly examined from an archaeological standpoint or any documentary evidence is found. The subterranean structure's mouth lies just below the floor of the assembly hall of the iconic building (Old Secretariat), which was constructed in 1912 by the British after the imperial capital was shifted from Calcutta to Delhi, and it is being planned to be thrown open to the public next year.