Legal Obligation For Employer For Employing Contract Labour Under Various Labour Laws

Hi,
I want to know what is the legal obligation for an employer in Haryana state if he is employing approx 50 contract labours including females except getting Registration certificate under CLA.
With Regards,
XYZ

1. EPF Act will apply.
2. ESI Act will apply.
3. Payment of Bonus Act will apply.
4. Payment of gratuity act will apply.
5. Professional tax will apply if applicable.
6. HRA Act if applicable in Haryana will apply.
7. If it is a factory, Factories Act will also apply obviously.

The payment of Bonus Act, 1965 is applicable to Contract Employees"if Contract Employees are Employed through Contractors on Building Operations & Construction Workers"
However, Bonus can be paid to other Contract Employees voluntarily by The principal Employer
Over Time, Leave, Maternity Benefit applicable to Contract Employees.Contractor to issue Appointment Letter , pay Slips.Salary to be paid before 7th of the Month through NEFT