This book is a research work originated from a new cosmological model 'The Heart of the God' further to film theory of the universe. It supports 'Steady State Theory 'of cosmology. The GP equation is the ultimate proof for correctness of data and the values of quantities derived in 'Double Relativity Effect' and 'Siva's Constant 'K'of Cosmology'. The completeness of Film theory and Double Relativity can be verified through GP equation. In this book a new concept of elementary particle physics named 'K-suryon theory' has been introduced.Application of k-suryon theory is explained in another concept 'An approach to Quantum Theory and General theory of Relativity through Classical Theory'. 'Chandrasekhar's limit' and 'Hawking's Radiation' can also be explained through these new concepts.'Hawking's Radiation' will be mentioned in forth coming works of author. Researchers can make use of these concepts for their research works on cosmology.