Hello,
Generally, Earned Leave/Sick Leave can be either Prefixed or Suffixed to any Holiday or Weekly off and only the number of actual leave availed shall be counted for availing purpose.
But no leave can be both prefixed or suffixed to a Holiday/ Weekly Off. And in case any leave is prefixed or suffixed both to a Holiday/Weekly Off , the number of Leaves availed shall be counted from 1st Absence(leave) to the Last Absence, including the Holiday(s)/Week Off(s) for availing purpose.
In your case, if both weekly off(s) are falling in between the Leave period of 15 days then it should be counted. For Example if an employee takes Leave from 7 July 2007 to 16 July 2007 and Weekly Off is Sunday then Leave Days ( 10 days) will include both 8th & 15th July.
Leave rules differ from Company to Company.
As per explanation given for Subsection 1 of Section 79 of Factories Act, 1948:
The Leave admissible under this subsection shall be exclusive of all Holidays whether occurring during or at either end of the period of leave.
Thanks & Regards,
Anuj