Canteen Facility Alternatives for Manufacturing Units
As per rules, providing canteen facilities is mandatory. You can hire the next building adjacent to your factory premises and set up a canteen for all the workers. For the supervisory/managerial staff, the canteen staff can make alternative arrangements to supply food within their office premises.
Alternatively, you can make arrangements with caterers who can operate a mobile van near the premises to provide breakfast at 8:00 am, tea and snacks at 10:30 am, lunch at 1:00 pm, and tea & snacks at 4:30 pm, as required by the workers/managers/unions. They can supply food at the rest area/shed provided on the factory premises, and the mobile canteen will clean the premises after serving the workers.
These options could serve as remedies for the situation, and other members can also provide insights to resolve the issue.