How Should I Handle Leave Deductions for an Employee Who Used All Their CLs?

Dear All, this is my first job. Ideally, I should have asked this to my boss, but he is on tour. So, I thought of floating my question in this ocean of experienced HR professionals.

Question Regarding Leave Policy

My question is regarding leaves. We are a new and small company, and we follow a policy where we give 6 CLs, 6 SLs, and 21 ELs. Now, one of my employees has used his CLs already in Jan, Feb, and March (I joined on April 14, and there was no HR for some time before I joined). So, now, is it okay if I start deducting his ELs? Or is there any alternate method?

Thanking you all in advance.

Regards, Vikram

There would not be an alternate method, as employees have used all their CL quota for the period. Now, EL would be adjusted against their respective absenteeism.

All the very best.

Thanks