¹Department of Mathematics, Bengal Engineering and Science University, Shibpur. P.O. Botanic Garden, Howrah-(INDIA)
²Department of Mathematics, Bagnan college, P.O. Bagnan, Howrah-711303 (INDIA)

In this note, we have obtained some novel results on bilateral generating functions involving P( n, ) (x) n k , a modified form of Jacobi Polynomials by group theoretic method. In fact, in section 1, we have introduced a linear partial differential operator R which do not seem to have appeared in the earlier investigations and then we have obtained the extended form of the group generated by R. Finally, in section 2, we have obtained a novel generating relation involving the polynomial under consideration with the help of which, we have proved a general theorem on bilateral generating relations of P( n, ) (x) n kSome particular cases of interest are also discussed.