Municipal Corporation Of Delhi — illegal construction in flat. danger to life

Address:

110070

I am a resident of 1053 sector d, pocket 1, vasant kunj, new delhi 110070.
For last 9 months in the flat no 1051 below mine, is involved in mass breakage and alterations in the main wall and load bearing structures.in spite of repeated intimation to the contractor, as the owner of the flat is not available, the breaking and demolition of existing structures have not stopped.
As a senior citizen, i feel threatened and living with fear of house collapse. It is not understood under whose permission and connivance such illegal construction is being carried out.
Need intervention and help of law enforcing authorities to stop all activities and saving life of senior citizen.