I want to know that we are a factory manufacturing auto components. We observe Sunday as weekly off. Can we call some of our employees on Sunday as normal working day and give them staggered off. We are a unionised factory and for last more then 25 years we are giving Sunday as weekly off to all our employees working in the factory. If we change their weekly off and give them staggered off will it be legally correct and covered under which section of the Factories Act,1948.