Government Jobs though competitive, are well paying and have a very high job security. You make try for State Administrative Exams, PCS, UPSC, SSC CGL, RBI Grade B, RRB, SBI PO and many other Exams.

Otherwise Biotechnology is another such option, where the entrance might be comparatively easier with the high number of Reputed Public and Private Universities. But you will face some competition during Campus Placements or PhD/MS Applications, irrespective of how well you are prepared for it.

Teachings/Academic/Research Jobs are another where there is Less Competition, Many Vacancies and somewhat strong Job Security. Today Teaching is not limited to schools, but Coachings, EdTech Platforms, Universities and Research Institutions.

For more information about Career options after PCB in Class 12 do follow the link below

https://school.careers360.com/articles/courses-after-12th-pcb/amp