Contract Labour License to be obtained based on total manpower or the particular site manpower ?

Sir/Madam,
We are a manpower sourcing company and recently we have obtained a work order to provide 60 workmen to a renowned bank in Bihar.
Under the said work order, we have total 30 sites in different districts of Bihar and in each sites we have more or less 5 employees.
Now my questions are,
1. Should we have to obtain license under Contract Labour Act (as the site-wise manpower is below than 20 but in totality it is above 20)? If Yes,
2. Should we have to obtain single license for 60 employees ? Or,
3. Should we have to obtain multiple licenses site-wise / district-wise ?
Your kind suggestion in this regard would be helpful.
Thanks & Regards,
Sudipta
1st May 2019 From India, Calcutta

The Principla Employers' Establishment Premises / Site where CL are to be engaged by the Contractor is the Determinant/ deciding Factor That is Why the Principla Employer issues a Certificate to Contractor for applying for and Obtaining Enrollment/Permission
Kritarth Team
Bluru Office
2.5.19
2nd May 2019 From India, Delhi