Dear Sidharth
As explained by Mr. Dayanand L Guddin Please disseminate the Rules and Regulations of your company, which is to be followed by all the employees properly. Unawareness also may be the reason for breaking the rules. If you clearly spelt the Rules and Regulations to be followed while working in the factory, Dress code to be followed, Shift/Work hours and rest hours spread details, Open Interview and Redressal of Grievance procedures, etc., then you can start implementing the same.
If the above are already available then please re-circulate the same and place one by one in the Notice Boards of your work area.
Then if any found violating the rules then you can issue Show Cause Notice ask for reply, and do all the procedures to take the erring personnel on task.