*At first I want to say that if the incumbent submit the Medical Certificate (16th – 20th) then the leave will be treated as Medical Leave and the duration will be 5 days. ( 15th August- Holiday and 21st Rakhi Purnima = 2 days will not count.) On 22nd August, he should join.
** But in case of Causal Leave- 16th, 17th, 19th and 20th = 4 days will be treated as Causal Leave. On 22nd August, he should join.
*** If he failed to do so then his Leave will be treated as (if excess of 7 days) Medical Leave may be counted as 16th to 22nd and on ward.
**** It is better to regard as Causal Leave for 4 days, but joining date must be on 22nd August.