Q.An eminent Indian embryologist is :

Among the four names, P. Maheswari is the eminent Indian plant embryologist, celebrated as the father of Indian embryology.

Working

Each name is checked against the field it is actually known for. M.S. Swaminathan was an agricultural scientist and plant breeder, best known as the architect of India's Green Revolution through the development of high-yielding wheat varieties -- his work was in plant breeding and agronomy, not embryology. S.R. Kashyap was an early twentieth-century Indian botanist known for his taxonomic and floristic studies, particularly on algae, bryophytes, and the flora of the western Himalayas. K.C. Mehta was a plant pathologist renowned for his detailed studies on the life cycle and epidemiology of wheat rust fungi in India. P. Maheswari (Panchanan Maheshwari), by contrast, is internationally recognised as the father of Indian plant embryology: he carried out extensive research on the embryology of angiosperms (inc …