Need Help_Compliances for Non-resident individual (Not an Indian)_under Labour and Income Tax Law

Non-resident individual (Not an Indian person) wants to work in India with Company.

He will work on some conditions are as below-

1. He will stay for 3 weeks in India and will go back to his own country for 1 week. Again he will come back in next month.
2. He will not be the director of company.
3. His stay will be for 6 to 7 months depend on work.
4. Currently, he is having business visa.

Professionals, Plz guide on what are the compliances we need to do under Labour and Income tax Law.