Cowpea (Vigna unguiculata L.) is a multipurpose kharif and warm season pulses crop, commonly cultivated all over India. It is also called as black eye pea, black eye bean, southern pea, china pea, marble pea, chowli and lobiya. West Africa and India are the centers of diversified for cowpeas. Cowpea is cultivated as seed, green vegetable and fodder in many diverse agriculture systems in many countries of Africa, Latin America, and south East Asia and in the southern United States (Singh et al., 2012). The largest cowpea seed producing nation are Africa,