According to a circular issued by the railway board, the passengers in the reserved coaches can only sleep between 10 pm and 6 am to allow others to sit on the seats for the rest of the time. Until the circular was issued, the existing permissible time for sleeping was between 9 pm and 6 am. The new provision replaces paragraph 652 in the Indian Railways Commercial Manual, Volume I, which provides for sleeping accommodation between 9 pm and 6 am. Passengers are, however, requested to cooperate with the sick, persons with disability, and pregnant ladies in case they want to sleep beyond permissible limits. This provision is applicable to all reserved coaches with sleeping accommodation.