Should I continue studies or take up job after B.Tech (Industrial Biotechnology)? I cleared GATE (Biotechnology) with a score of 50.33 and AIR : 571.

Highers in biotechnology
I am currently pursuing my B.Tech in Industrial biotechnology. I cleared GATE I biotechnology with a score of 50.33 (AIR 571). I am confused on whether I should continue my studies or take up a job,cause people say there is less scope for biotech. I would like to have your advice on this. And if it is better to go on studying, which course would be the best option:
1. Biomedical engineering
2. Biochemical engineering
3. Clinical engineering
4. Industrial Biotechnology
5. Bioscience & Bioengineering