"Indian engineer" . . "pss"@en . "PS Subramanyam"@en . "1950Z"^^ . . "Director, ADA" . . . . . . . . . "Subramanyam Pinjala Siva"@en . "P S Subramanyam (born in 1950, in Vijayawada, Andhra Pradesh) is an Indian Aerospace Scientist and served as the Director of Aeronautical Development Agency."@en .