Is the construction of parking at Gurdwara Rakabganj without mandatory clearance?

Information through RTI route has disclosed that the the Delhi Sikh Gurdwara Management Committee (DSGMC) had not sought any permission from the Heritage Conservation Committee to build an undergroung parking. It has been reported that the Delhi Sikh Gurdwara Management Committee (DSGMC) is building a multi-level underground parking lot at a cost of nearly Rs.400 crore inside Gurdwara Rakabganj in the New Delhi area without mandatory permissions. It was also claimed that the no permission was granted by the Department of Forests and Wildlife, Tughlakabad, to fell any tree inside the shrine's premises for construction of the parking. 

The New Delhi Municipal Council has now been directed by the High Court to explain how the Delhi Sikh Gurdwara Management Committee (DSGMC) is building a underground parking lot inside Gurdwara Rakabganj without mandatory permissions as the shrine is a notified Grade III heritage building.