Wide hybridization has the scope to widen genetic and cytoplasmic basis of any crop species . In the present study, interspecific hybridization between two cultivars of pigeon pea and 3 wild species viz., C.platycarpus, C.volubilis and C.lineatus were attempted. The study aimed at developing methods to obtain interspecific hybrids by utilizing vast wild relatives of pigeonpea. First crossability of pigeonpea with its wild relatives was determined based on pollen germination and pollen tube growth. Among the 11 crosses, only Pusa-33 x C.lineatus showed post-zygotic barrier and in the other...