I think it is not Form VII, it should be Form VIA & VI B, which a contractor need to submit to ALC regarding "Notice for commencement / completion of contract work".
These forms are applicable under Contract Labour (R&A) Central Rules.
The labour licence is not applicable to you.
But since this is Steel Plant, the PE may require to apply for RC or in order to update contractor's list in the existing RC. Hence they are asking the form from your company.
This is just an undertaking that you have commenced contract work at site.
4th October 2018 From India, Delhi