"Considering the increasing spate in unauthorised rooms and alterations being carried out by various allottees or occupants of DDA flats at D-6, Vasant Kunj, Vice-Chairman, DDA Balwinder Kumar, has ordered a month-long drive for sealing as well as removal of all such additions and alterations," DDA said.
"It had been brought to notice that a number of occupants have constructed rooms on the terrace in Narmada, Saraswati, Yamuna and Ganga apartments and their number exceeds 282 flats," it said in a statement.
The housing authority has advised all allottees or occupants to immediately remove these unauthorised constructions on the top floor or on the common portions of land failing which would invite penal action.
Actions according to provisions of the law include demolition, sealing of the flat, disconnection of electricity, water to the premises, among others.
DDA today sealed five rooms on various terraces, the statement said.
On September 1, DDA launched its biggest-ever housing scheme, offering over 25,000 flats.