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7 Acknowledgements | 177 School, Oddanchatram, who have nurtured me through these years. I would also like to extend my gratefulness to Dr. Selwyn Ebenezer and his team from Believers fellowship church, Oddanchatram for your constant support and encouragement. Last but not the least, I would like to thank my mom and dad, for giving me the best education amidst all their hardships. My parents put our education before their personal comforts. I stand humbled and heavily indebted to them as I enjoy the fruits of it now. My brother and me are blessed to have them as our parents. Dear James, Divya, Ajoy and Alwin you have a special part in our lives and thank you for your love and support. My daughter Janet, you are special to me and you have made every tired evening a relaxed and refreshing one. The smile on your face makes my day. Special thanks to Beulah’s mum and dad for giving her in my life. Without my wife’s support and help, I wouldn’t have progressed this far. Besides being a loving and caring mother for our little Janet, she took the best care of me throughout these years. Very often I was like a kid, back from school, have dinner and glued to my computer. She never complained and fully understood me. I am deeply indebted Cutta for all your sacrifices, three cheers Cutta, you are my pillar and my ever-shining STAR. I feel most appropriate to dedicate this thesis to her.