Dear Friend,
As per the Factories Act there is no mention about the CL & SL, the Factories Act speaks about the Earned Leave @ 1 EL for every 20 actual working days.
If you have any provision in your Certified Standing order / Leave Rules / HR Hand book then accordingly to need to follow.
If it is Shops & Establishments Act then it is 12 CL, 12 SL & 15 EL.
Thanks and regards
Kamesh