New Delhi, With a view to catering to requirements of different categories of passengers served by Indian Railways, available reserved accommodation is distributed broadly under various reservation quotas. While booking reserved tickets through the website of Indian Railway Catering & Tourism Corporation, passengers can book tickets under general quota, ladies quota, foreign tourist quota, premium tatkal quota, tatkal quota, senior citizen quota, and physically handicapped (Divyangjan) quota. Accommodation can also be allotted under Reservation Against Cancellation(RAC) & Pooled Quota while booking reserved tickets through website of IRCTC, official sources said here. These reservation quotas constitute approximately 94 per cent of total reserved accommodation available on Indian Railways, which can be booked both through internet as well as through computerised Passenger Reservation System of Indian Railways. To avoid any misuse, this facility is generally not extended for those quotas which require prior physical verification of documents. However, recently this facility has been extended to persons with disability, press correspondents and Defence personnel. Extension of such facilities to different categories of passengers is a continuous and ongoing exercise.