courtesy : Sarma Sastrigal from Periava Forum.
Bhima Ratha Shanthi is scheduled for the date on which the person starts
70 years of age - Janma Nakshtra to be taken into account.
While on the subject let me give a list of such shanthi karmas hereunder:
===============================================
* One year old : Abda poorthi Ayush Homa
* Start of 55th year : Bheema Shanthi
* Start of 60th year : Ugra Ratha Shanthi
* Completing 60 years : Sashtiabdha poorthi
* Start of 70th year : Bheema Ratha shanthi
* Start of 72nd year : Eka Shanthi
* 77 years 7 months 7 days : Vijaya Ratha Shanthi
* Completing 80 years & 8 months : Satabhisheka
* Completing 100 years : Poornabhisheka (Kanakabhisheka)
=================================================
Of
all the Shanthi karmas listed above, Abdha Poorthi, Sashtiabdha
Poorthi, Bheema Ratha Shanthi & Satabhishekam are well known and
performed by many.
Hear I may also add that there is one more Shanthi Karma which is known as Prapouta Shanti which is to be celebrated when a son is born to one's son's son.
SRI RUDRA EKADASANI:
One
more information that every one of may be well aware of. When
Sashtiabdha poorthi, Bheema Ratha Shanthi and Satabhisheka functions
are done, Sri Rudra Ekadasani also is usually done as a part of the
function. Sri Rudra Ekadasani is a prayaschitha karma and it is
advisable to carry it out in a elaborate manner. It will do good to the
entire family in addition to the individual for whom the shanti karma
is intended.