IIT jam is qualifying exam for doing M.Sc from IIT's for any bechalore student...while gate is for M.sc student for doing PhD, or m.tech from IIT and for b.tech student for doing m...
for gate minimum qualification are m.sc. or b.tech.while for jam minimum qualification is b.sc.\n
gate is for m.tech and jam is for m.sc or integrated p.hd.
syllabus are also diffe...