Section 20(2) in The M.P. Cinemas (Regulation) Rules, 1972
(2)The entrance to the enclosure shall be fitted with a closely fitting door of fire-resisting material suitably placed and opening outwards and all openings, bushes and joints shall be so constructed and maintained as to prevent, so far as possible the escape of any smoke into the auditorium If means of ventilation are provided they shall not be allowed to communicate direct with the auditorium.
