Many people have various worries regarding death of a family
member during Diwali especially before or after. Please note that the usual
procedure is that family members do not celebrate Diwali if death has happened
before the festival. There is nothing else associated with the unfortunate
event in the family.
Avoid being superstitious. There is nothing in Hindu
scriptures that suggest that death before or after Diwali is inauspicious.
The scary ideas are mere superstitions and should be
completely ignored.
Do Shradh, Tarpan and Pinda Daan as per your community
belief.
Donating food or clothes on the birthday of the deceased is
highly meritorious.