The book entitled with "Complex Manifolds and its submanifolds" deals with the properties of quarter symmetric non metric connection in a nearly kaehler manifold, generalized CR-submanifolds of quasi kaehler manifolds. The integrability conditions of the distribution involved in the definition of such manifolds. Geometry of leaves of such distributions are also given and almost Hermitian manifold equipped with semi symmetric non metric connections. The properties of a contravarient almost analytic vector field with semi symmetric non metric connection are also given.