I have posted a few articles on Sraddha,Rites for the departed , including text of Mantras ans Mahalaya Paksha Procedure.
I shall be posting a series of articles in detail on various aspects of Sraddha.
Here are the types of Sraddha to be performed.
They are one hundred sixteen in number.
Sraddha the ceremony performed for the ancestors is of different types.
Stricly speaking Sraddha has to be performed daily.
Definition of Sraddha.
देशे काले च पात्रे च श्रद्धया विधिना च यत् ।
पितृनुद्दिश्य विप्रेभ्यो दत्तं श्राद्धमुदाहृत् ।। – ब्रह्मपुराण