As per the Hindu belief, Gaya Ji pind daan is mandatory Karma to attain peace, good health, and prosperity in life. It is believed that during funeral only body is put at rest but to attain peace to the departed soul, pind daan offerings by their family member become a necessity.
So, it is very important as per Hindu belief to perform Shradh Karma to help the departed souls to attain peace and at the same time get the blessings from their deceased ancestors for the peace to his own life.