We define trans-Sasakian Finsler manifoldF 2n+1 = (N ,N ,F) and semi-invariant submanifold F m = (N , N , F) of a trans-Sasakian Finsler manifoldF 2n+1 . Then we study mixed totally geodesic and totally umbilical semi-invariant submanifolds of trans Sasakian Finsler manifold.

We study GCR-lightlike submanifolds of (")-Sasakian manifolds and derived some important structural characteristics equations for further uses. We also obtain some necessary and su¢ cient conditions for the integrability of various distributions of GCR-lightlike submanifolds of (")-Sasakian manifolds.

In this research, generalized and extended generalized φ -recurrent Sasakian Finsler structures on horizontal and vertical tangent bundles and their various geometric properties are studied.

In this paper, φ-recurrent Sasakian Finsler structures on horizontal and vertical tangent bundle diffusions and their various geometric properties are studied.

In this study, the notion of locally ϕ-quasiconformally symmetric Sasakian Finsler structures on the distributions of tangent bundles is introduced and its various geometric properties are studied with an example in dimension 3.