both are same.there are difference between medical leave and half pay/half average pay leave. one can enjoy 365 days ml in whole service period but one can enjoy more than 60 half av. pay leave .half av. pay leave will not credited more than 60 days in ones leave a/c.but when one exhaust ,suppose 10 days half av. leave next year 10 days h.a.l. will accumulated in his credit.so total again be 60.