During Mahapradosham, Can the monthly Shravana recitals be done during the evening? What is the minimum time after sunset must one do paranai or tadheeyaradhanam?

During Mahapradosham time, Shravana sevakalam is not allowed; but during the same time, we can participate in any Shravana sevakalam, sattrumurai, etc at temples.
Mahapradosham exists for one and half hours after sunset; any parayanam and partaking of food are not allowed. It appears one can partake after this period.