Vidyaranya's contribution to Advaita consists in the best possible reconciliation of the vital thoughts of several Advaita Schools of the post-gatikara period. His approach to Advaita is a blend of several currents that from Indian Philosophical thought that has entitled him to a lasting place in the history of Advaita. Vidyaranya, though he strictly belonged to none of the three schools viz. Vartika, Vivarana and Bhamati respectively, in his interpretation showed great intellectual ability in amalgamating some of the so-called irreconcilable principles of these schools. But his propensity to the Abhasa school in the main flow of his interpretation is beyond doubt. Dr. Satyadeva Mishra considers Vidyaranya to be the staunchest upholder of the Abhasa theory and is not sure of his partiality to other theories especially the reflection theory (Pratibimbavada) of the Vivarana-school. The present work is a modest attempt to satisfy the need of such a full-length study of Vidyaranya and his great contribution to Advaita philosophy.