Tripindi Shraddha is known as kamya Shraddha. The soul of a deceased person, whose Shraddha was not been performed continuously for a period of 3 years, gets converted into the category of Pret (just like a ghost). Amavas is the day of Pitars. On this day, Shraddha should be performed.
To get expected results and let the unsatisfied souls attain the highest state of liberation, Tripindi Shraddha has to be performed. This religious act should be performed only at the holy place name Trimbakeshwar which is meant for demon liberation or sacrifice. Brahma, Vishnu and Mahesh are the main Gods involced in this rite and in this whole world Trimbakeshwar is the only place where these three Gods reside together...
There is always an atmosphere of quarrel in the house. The marriage of son or daughter becomes difficult in spite of their attaining the age of marriage. Sometimes businessman becomes bankrupt. Always the deceased person comes in the dream. Unbearable pains are to be suffered due to effect of black magic....
To get rid of all such troubles, Tripindi Shraddha is recommended in a well-known book "Shraddha Chintamani". This formality has a capacity to remove troubles of all above reasons.
We are having so many examples of the people who have done Tripindi Shraddha and got relief from troubles..
Trimbakeshwar Temple
Pandit Thete Guruji.