1951 - Suddha Sanmarga Nilayam was established.

1951 - Appar orphanage was established

1951 - Appar old age home was started

1953 - Vallalar Gurukulam Primary School was started

1953 - Ramalinga disciples home was initiated

1955 - Vallalar Gurukulam Primary School was upgraded to Middle School

1958 - Vallalar Gurukulam Middle School was again upgraded as High School

1969 - Founder O.P.R. nominated Arutselvar Dr.N.Mahalingam as the President of the Suddha Sanmarga Nilayam.

1992 - Arutjothi Dr.R.Selvaraj was appointed as Secretary of Suddha Sanmarga Nilayam

1994 - Vallalar Gurukulam High School was raised to the status of Higher Secondary school

2001 - O.P.R Memorial School of Nursing was started

2004 - O.P.R Memorial Teacher Training Institute was started

2005 - O.P.R Memorial College of Education was established.

2005 - 7 Residential schools for drop out girls were started under SSA scheme

2006 - Dr. N.Mahalingam Teacher training institute was started

2008 - Vallalar Arts & Science College was established

2008 - M.Ed., Course was Initiated in O.P.R Memorial College of Education.

2009 - O.P.R Memorial College of Paramedical Science was started.

2009 - O.P.R Memorial Primary and Nursery School was started

2012 - O.P.R Memorial College of Paramedical Science initated Post Basic B.Sc Nursing course and also enhancement of seats in B.Sc Nursing course from 40 to 60 seats was done.

2014 - Mr. Balasubramaniam, Was Elected as Patron & Mr. Shankar Vanavarayar, Elected as President.