an aspirant from PCB and completed Bsc (bzc) and MSc chemistry graduate is there is a carrier scope of such aspirant in PSU, Barc or any other
PSU you can go for after MSc through GATE:
Mineral Exploration Corporation Ltd. ( Executive trainee chemist)
Oil and Natural Gas Corporation (chemist)
IOCL ( asst officer quality control )
DRDO ( scientists grade b )
BARC( scientists grade b)
You check the official website of the afore mentioned to know more about them.
I hope my answer helps. All the very best for your future endeavors!