[8] Sir Ashutosh Mukherjee was appointed as the president of imperial library council (1910) to which he donated his personal collection of 80,000 books arranged in a separate section.

[10] On 1 February 1953 the National Library was opened to the public by Maulana Abul Kalam Azad.

While taking stock of the library building, the conservation engineers discovered a previously unknown room.

[14] The ASI archaeologists tried to search the first floor area (that forms the ceiling of the room) for a trap door, but found nothing.

Since the building is of historical and cultural importance, ASI has decided to bore a hole through the wall instead of breaking it.