first you give a request letter to your principal employer for issue the form - v. Then you take this letter with form-iv, which is prepared by you, your work order copy, power of attorney of your site in charge / project in charge.
Then you prepare the 2 nos challan one for security deposit it is refundable, another is fees it is not refundable. At your district labour office and deposit the money at the bank.
After completion of this above work dlo/acl will issue the labour licenses
jnana ranjan kar