DDA House — unauthorised construction toilet and bathroom

Address: 110093

Sir,
This is to bring to your kind notice that our neighbour residing in 61-a pocket-f g. T. B enclave dilshad garden delhi -110093 had built toilet and bathroom in their lobby, which is not constructed by dda. They have made this washroom apart from the one which is already in build inside their house by dda. They always use the toilet made by their own and is situated right below our drawing room's window. Whenever we go to our balcony to fetch fresh air, we are always left with the foul odour coming frm their washroom as it doesn't have a shafts system which has constructed by dda for the convenience of other flat members. Even the visitors or guest visiting us complaint about the same issue and we are left ashamed. I request u to kindly pay a visit and consider my request to remove this unauthorised construction for the convenience of other neighbours as well.
I hope you will take an action as soon as possible.
Thanking you
On the behalf of all neighbours.