BGYCT-135: Petrology is a Theory subject in IGNOU. This course is taught in the following programme(s) of Indira Gandhi National Open University: Bachelor of Science (General). This subject is part of the following programme code(s) in IGNOU: BSCG. Continue browsing to get solved assignments, handwritten assignments, question papers, exam help, guide books, and help books for BGYCT-135.