Respected Umakanthan Sir,
I wish to bring more clarity to this subject, with due respect to you. The PoG Act is applicable to:
(a) every factory, mine, oilfield, plantation, port, and railway company; (b) every shop or establishment within the meaning of any law for the time being in force in relation to shops and establishments in a State, in which ten or more persons are employed, or were employed, on any day of the preceding twelve months.
Here, factory, mine, oilfield, plantation, port, and railway company mean a factory, mine, oilfield, plantation, port, and railway company as defined under respective Acts as applicable to it. If 10/20 or more persons are employed in the manufacturing process, then it is a factory (except in Maharashtra where it is now 20/40).
Since the strength of employees is less than 10 in this particular query, the employee is not entitled to Gratuity under the Act. However, in case the employee's strength in the past had crossed 10, then the scenario would be different. Once the law is applicable, it will continue to be applicable even after the strength falls below the threshold.