Working hours is fixed by the labour dept of the state.It varies from office to factories.You have to go by that rules. If you have settled your working hours(48hours)by a settlement i.e. bipatite or tripartite agreement you have to make another settlement with your management keeping fixed the total weekly hours same as you were doing previously.
Secondly, you strictly make it 6 days a week, and frame a policy which provides the employees a benefit to take the leave for two days a week in case if he is ready to work an hour extra/ as per the schedule, that is 9:00 to 6:30 as mentioned, in this way both would be benefited and does not affect any law, but make sure that you have a written copy with the employee signature of the selected schedule......... and also mention that once they sign they can not change the schedule as they wish...... if they want to change make it once in 6 months or 3 months as per your convenience....... and request them to agree for it unanimously (so that there wont be further burden of scheduling different) giving them some 15 days time to decide upon..........
Is the factories act applicable to you. If your working hours are 9.30 to 6.30 with one hour break for lunch then total working hours are 8 per day and 48 hours per week. For 5 day working, you can issue a notice under 9-A of Industrial Disputes act and if no one objects to it, you can inform the authorities about the change and go ahead.
I also searching the alternate week five days working proposal to submit my management. Kindly share the same if you have any with contain its Advantages & Disadvantages.
We are also pharma company & manufacturing API product just for your information If you can help us for the same.