Working Hours - Construction Company

Dear All,
I am working with an construction company and our office timing is 9:30am to 5:30pm including break from monday to Friday and half day on saturday i.e 9:30 tp 1:30pm without break which makes 44 hours per week. now my management thinks they should revise the timing making it 48 hour a week as per labour law. Can any one help me how should i go about issuing this policy without creating grivences among the employees. Or anyone can help me that how should i make my management understand to avoid going ahead with this policy.
What is the official time to give break as per law.Like how long it should be within 8 hours.
Awaited Quick responce.
Thanks,
Darakshan
HR

Dear Darakshan
As per your working timings your Employees are working from Mon to Friday =7.5 Hrs daily *5days =37.5 ( Excluding Break intervals)+ Saturday 4 Hours so total working timing of Employees is =41.5 Hours /week and as per your querry you are saying they are working 44 Hours .
Pl. check before putting any proposal to management . You should be clear on the working timing regulations .
Regards.
Jagjeet

Dear Jagjeet,
I am including break also.... As per law i guess 48 hours working is with break...
Regards,
Darakshan

Dear Mr.Darakshan
Change in the working hours amounts to change in conditions of employment. Therefore Section 9A of the Industrial Disputes Act is applicable to this case.You cannot effect the change without giving to the employees 21 days notice as required under Section 9A of the Industrial Disputes Act. Once you give notice, the workmen/union may object to the change and may also raise an industrial dispute under the Industrial Disputes Act 1947. Therefore do not effect any change without following the procedure and also if you have a strong union/body of workmen, try to negotiate with them on this issue. Explain to your employers the legal requirements, and also whether there will be a possible or probable industrial unrest. You and your employer who are directly on the field are the best judges as to ascertain whether there will be any industrial unrest or not if the working hours are changed.
With regards