Hi Ramesh,
Initially you are generating the quota for 2013 for all 3 leave types with the validity /deduction interval from 15/09/2013 - 31/12/2013 . But in case of P.L you are not allowing the employee to avail before completion of 11 months which can be achieved through user exit PBAS0001.
I don't get one point here why you are allotting the quota from 15/09/2013 - 31/12/2013 what is the point anyways he cannot avail P.L in 2014 as the validity ends in 2013.
Best way is to credit the leave from the date of confirmation or date when he/she completes 11 months by maintaining the necessary settings in V_T559E as suggested by Mr. Upendra too.
Also maintain the the deduction interval in table V_T559D from the date when he/she completes 11 months. Hope this helps you to solve the issue.
If this is not your requirement please get back to us on clarifications.
Regards,
Mithun K