Masyam and Oonam have to be done without fail.
Purity in food must be maintained to the extent possible; eating outside food should be avoided, we can eat food at our relative’s house provided the purity is maintained. Orthodox people will not take food other than from their home due to its purity, any other food outside of the home is called para-annam.
During the first year, one should not visit hilly Divya Desam, not go on pilgrimages, not take a bath in the ocean; these are to be avoided so that masyam can be performed without any hindrance.
Masyam and maintaining purity are important; besides, one can continue the daily austerities and worship Perumal.
Note: If the question is asked by the elder, they have to perform all the masikam, oonam austerities; if the query is from younger brother, it is enough that they assist the elder in all such rituals.