1 RULES THE MADHYA PRADESH BHUMI VIKAS RULES, 1984 ...

M.P.Bhumi Vikas Niyam, 1984(II)(e) Exit doorways shall be openable from the side which they serve withoutthe use of a key.Revolving Doors - (a) Revolving doors shall not be used as required exitsexcept in residential, business and mercantile occupancies, but shall notconstitute more than half the total required door width.(b) When revolving doors are considered as required exit way the followingassumption shall be made :-(i) each revolving door shall be credited one half a unit exit width :(ii)revolving doors shall not be located at the foot of a stairway. Anystairway served by a revolving door shall discharge through alobby or foyer.(III) Stairways - Subject to the provision of rule 77–(a)(b)(c)(d)(e)(f)(g)(h)interior stairs shall not be constructed of ordinarily combustible materialsthroughout.Interior staircase shall be constructed as a self-contained unit with at least oneside adjacent to an external wall. Wherever a building is not identified byclause (ii) of sub rule (6) of rule 17 exceeds 10.5 meters in height and isserved by a staircase the same shall be of enclosed type;A staircase shall not be arranged around a lift, shaft unless the latter isentirely enclosed by a material of fires resistance rating as that for typeof construction itself. For building more than 15 meters in height, thestaircase location shall be to the satisfaction of the competent fireAuthority as approved by the Government.The minimum width of treads shall be governed by sub-rule (4) ofrule77. The treads shall be constructed and maintained in a manner toprevent slipping.The maximum height of riser shall be governed by sub-rule (5) of rule77.Handrails shall be provided with a minimum height of 90 centimetersfrom the center of the tread.The minimum headroom in a passage under the landing of staircaseand under the staircase shall be governed by sub-rule (6) of rule 77.No living space, store or other fire risk shall open directly into thestaircase.80