science is about theory and research... masters and phd is about more indepth research. what kind of company are u refering? most companies will definitely look for masters or phd where necessary especially in research work.

no abundant job opportunities.. esp in chem n bio in sillypore. research pay is slightly lower than market rate. but u get a qualification upon completion.

try govt sector.. mindef astar welcome masters and above.

for research jobs... most of the time they are looking for 2nd uppers and above.