Dear Poonam,
This is a very misunderstood concept. There is no one line answer. It could be 2 days also and four days also. It depends on hoe the leave is calculated.
In case of Workmen cadre, leaves are generally allowed as per Factories Act i. e one day leave for every 20 days of actual work i.e. no leave is allowed on weekly rest, leaves and holidays. Therefore when we do not allow leave on weekly rest and holidays then intervening weekly rest and holidays are also not counted as leave. Threfore in such situations only 2 days leave will be counted if absence is from Friday to Monday with Satureday and Sunady as Offs. In Executive/ Management cadre also some Comapanies allow leave on this basis but instead of 20 days, they allow it on 15 or 11 days.
Other alternative is that you allow 30 days or 25 days of EL/PL per year. In such situations, if there is absent or Leave without pay then leaves are reduced in same proportion but no reduction takes place for weekly offs, holidays and leaves. So employee earns leave on weekly offs, holidays and leaves availed also. Therefore when leave is earned on weekly offs and holidays, then intervening weekly offs are also counted as leave. So in this situation 4 days leave will be counted.
Hope this will clarify the position and you will not need any further guidelines on this matter.
K K Tyagi