In the state of UP, the prescribed number is 20. I would also like to suggest that your company should have its own SO, in full agreement with the Kritarth Team. You will have your own well-defined Service Rules, and definite avenues will be open to you for building a healthy industrial relations culture. The administration of SO is a subject matter of the respective states. You will find that the number requirement varies from State to State Certification.
Regards, RDS Yadav
Director - Future Institute of Engineering and Management Technology & Director and Labour Laws Advisor Navtarang HR Services BAREILLY (U.P.) [Phone Number Removed For Privacy-Reasons] [Phone Number Removed For Privacy-Reasons]