Prof. Dr.A.Arunachalam, Founder and Chairman of Adaikalamatha Group of Institutions, Thanjavur and Christhu Raj College, Tiruchirappalli, is an educationalist having 45 years of experience in the field of education, specialized in the area of Law and Economics. He started his career as Lecturer in S.T Hindu College Nagercoil and served as Principal in various colleges at Tirunelveli and Thanjavur Districts. He was deputed as the Registrar, Madras Institute of Technology, Anna university and owns the credit of being the first Registrar of Bharathidasan University, Tiruchirappalli. He completed his Doctorate at Ranchi University. He has published more than 15 Books in the field of Economics. He is the Correspondent and Advisor of Mookambigai Engineering College and Srinivasa Polytechnic, Keeranur. As for his social contribution, he has adopted villages and arranged for  basic facilities such as, electricity, water supply, etc., He has conducted a number of  Youth Welfare Camps and  visited several foreign countries on educational purpose. He  is the patron and guide for the Adaikalamatha Institute of Management.