For National Holiday benefits, if a person was an employee of any organisation, he/she is entitled for paid holiday on 15th August (in the referred case) or double wages if on duty, Provided, this person should have been on Duty of this establishment Prior & After any National Holiday i.e. 14th August and 16th August. for instance.
If the employee was not on duty on either of these dates, he/she is not entitled for paid holiday.
Since, in the referred case, the person was Not on Duty or absent on 14th August, the person is not entitled for national holiday benefits.
May correct me if I am wrong.
Regards