"Absence from work" by the employee has the implication of the Employer's prerogative to withhold payment of wages or salary proportionately under the contract of employment. Besides, the contract also empowers the employer to initiate disciplinary action against the employee, if such absence is unauthorized or even uninformed. Conversely, any leave of absence formally availed becomes authorized absence and the question of wages/salary for such period is decided by the leave at credit of the concerned employee's leave account.
Coming to the scenario presented in the post, the employee has worked in the particular month for 3 days only and on all other days he was absent. The presumption here is that the absence was totally uninformed and unauthorized as well. Therefore, he is not entitled to wages/salary except for the 3 days he was present for duty in the month. In such a situation, the weekly off days and other holidays prior to as well as after the 3 days of presence to work get automatically merged with the period of absence and there cannot be any deemed sanction of weekly off and national holiday independent of the period of unauthorized absence so as to enable the absentee to claim wages/salary.