Dear Murthy,
According to the P G Act, 1972 this Act applies to every factory, mine, oilfield, plantation, port & railway company. It also applies to every shop or establishment within the meaning of any law for the time being in force in relation to shops & establishments in a state, in which ten or more persons are employed or were employed on any day of the preceding twelve months.
With Regards,
R.N.Khola