P-1 permitted explosive for use in degree underground coal mine in midcut, undercut or overcut faces, It is an exceptionally sfe aluminised cap sensitive explosives. It has low detonation temperature and insensitive to friction and heat. It also provides considerable reduction in noxious fumes and thus eliminate headache complaints. It must be used with approved type of detonators. The maximum charge in a shot hole should not exceed 800 gms.

P-3 permitted explosive suitable for use in degree -1, gassy underground coal mines, in midcut, undercut or overcut faces, It has low detonation temperature an insensitive to friction and heat , It also provides considerable reduction in noxious fumes and thus eliminates headache complaints, It must be used with approved type of detonators and maximum charge per shot should not exceed 1000 gms.

P-5 permitted explosive for use in underground gassy coal mines in blasting off-the-solid.