Yes, the wording "not exceeding twelve days" in Section 30(5) of the Telangana Shops and Establishments Act suggests that the law sets a maximum limit of twelve days each for sick leave and casual leave. Therefore, an organization can indeed choose to provide fewer than twelve days for each type of leave, such as six days of casual leave and six days of sick leave, as long as the total number of such leaves provided does not exceed the specified twelve days per type annually.
This flexibility allows employers to set their own leave policies within the bounds of this maximum limit specified by the Act, meaning they can offer less than twelve days, but not more.
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