Municipal Corporation Of Delhi — illegal construction at c 4/33 sector xi rohini delhi

Sir there is illegal construction at c 4/34 sector xi rohini delhi. With their illegal construction the sunlight coming to our house stoped. We request you to take immediate steps to stop the unauthorized construction.
The house owner illegally construct his house and even bend the street light poll. We have complaint about this to the house owner. But they replied that the map of the house has been approved by the mcd. How the mcd can approve the map whichis unauthorised constructed.
Therefore we request you to take immediate action for removal of the unauthorised construction.