Govt of Kerala has now allotted 21 rooms in the main and additional blocks plus 20 beds in the dormitory of Kerala House, New Delhi for general public.
In order to book the rooms in Kerala House they  can submit application for reservation of rooms through this new  website . The users have to first enroll in the website and then they can make online application for booking of the rooms in New Delhi, Kerala House.
Then you can check the status of your application.