Hi Subhendu, The registration of flats is currently happening at NBCC Vibgyor Towers Kolkata. The first round of registration happened on 7th and 8th Dec when only 2 beneficiaries registered their flat. The second round of registration is happening between 20 – 22nd Dec. If you have received the letter for registration from NBCC for the above mentioned dates – you can choose to register your property.Hi Subhendu, The registration of flats is currently happening at NBCC Vibgyor Towers Kolkata. The first round of registration happened on 7th and 8th Dec when only 2 beneficiaries registered their flat. The second round of registration is happening between 20 – 22nd Dec. If you have received the letter for registration from NBCC for the above mentioned dates – you can choose to register your property.