Factories act says :
Sec 79. Annual leave with wages
(1) Every worker who has worked for a period of 240 days or more in a factory during a calendar year shall be allowed during the subsequent calendar year, leave with wages for a number of days calculated at the rate of :-
* if an adult, one day for every twenty days of work performed by him during the previous calendar year ;
* if a child, one day for every fifteen days of work performed by him during the previous calendar year.
Explanation1: For the purposes of this sub-section :-
* any days of lay-off; by agreement or contract or as permissible under the standing orders;
* in the case of a female worker, maternity leave for any number of days not exceeding twelve weeks;
* andthe leave earned in the year prior to that in which the leave is enjoyed;
shall be deemed to be days on which the worker has worked in a factory for the purpose of computation of the period of 240 days or more, but he shall not earn leave for these days.
Explanation 2: The leave admissible under this sub-section shall be exclusive of all holidays whether occurring during or at either end of the period of leave.
So, paid holidays and approved leave is counted in days worked. Since the worker needs to be paid for weekly off, as per factory act and payment of wages act, that also is to be counted as worked.