There are various options available for your based on PCMB at 10+2 level, eventually it's dependant on your areas of interest career goals,skills,your preferences regarding job profiles.
If you'r interested in technical field, you can go for Engineering/ Architecture course/Railway Apprentice Exam/AME Training, CPL Training, BCA.
In the field of Marine/Navy/Defence, you can appear for IMUCET, Indian Navy BTech Entry Scheme, Indian Army Technical Entry Scheme, Indian Navy Sailors recruitment,National Defence Academy.Naval Academy Examination
You can appear for NEET for admission to various courses such as MBBS/BDS//Bachelor of Homeopathy Medicine and Surgery/Bachelor of Unani Medicine and Surgery/Bachelor of Ayurvedic Medicine and Surgery, in some cases even for BPT (NEET scores)are considered.You can go for BDes,BPharm. Bachelor of Optometry, BASLP, Radiology, Occupational Therapy,
If you're interested in research or teaching, you can do BS-MS Dual Degree from IISER, or four years BS degree program in IISC(Bangalore) through KVPY, you can also appear for NEST for 5 years integrated MSc program in NISER(Bhubaneshwar)/ UM DAE CABS(Mumbai), after this you can qualify for CSIR NET/SET, become assistant professor or pursue PhD. In case of teaching career in school level, you can do BSc-BEd. You can apply in Indian Statistical Institute for BSc Maths/Statistics, ICAR AIEEA UG for BSc Agriculture.
There are equally good options outside your field which are as follows;
NCHMCT JEEfor Hotel Management,
NIFT, NID, AIEEDfor Fashion Designing,
AILET/CLAT/LSAT/BHU UET to name a few for integrated law program.
Certified Financial Planner,
Certified Management Accountant.