Viswanatha Subramaniam PSN College of Engineering & Technology   2/5, Alwar koil East Lane, Alwarkurichi Ambai Taluka Tirunelveli District, Tamil Nadu 627412 India   drvsrs@drvsrs.com   www.drvsrs.com           JEL Areas: C5 : Econometric Modeling: General O1 : Economic Development: General