In this paper, we prove that the squared norm of the second fundamental form for bi-slant submanifolds with any codimension of nearly trans-Sasakian manifolds is bounded below by the gradient of a warping function and also find the conditions on which the equality holds. Some related examples are also provided.
Keywords: Bi-slant submanifolds; Nearly trans-Sasakian manifolds; Warped product bi-slant submanifolds.