Class 12-science

You can opt for BBA or hotel management.

In that case you can opt for M.Sc. Doing PG with full focus and dedication will fetch you good marks. Being a PG will help you to go ahead in your career, especially if you like to share knowledge, i.e. teaching.

Hi,
For accurate information regarding aeronautical engineering, i.e. its eligibility, criteria, scope, etc. You can refer the following link:
https://www.shiksha.com/careers/aeronautical-engineer-4

If you are interested in music then I would suggest you to go for B.Sc honors from DU or any other reputed university.

After 12th you can get into research field, you can aim to get into IISERs (Bhopal, Trivandrum and Pune). To get into these institutes you need to clear IIT-JEE.

NEET is the entrance taken by government for admission in medical field especially MBBS and also BAMS and BHMS. PCB student have many chances like B.Pharma, B.Sc and many more.

Advanced Diploma in Pre-Production and Game Design
Advanced Diploma in VFX
Aircraft Maintenance Engineering
B.E (Mechanical Engineering)
B.Sc. (Biotechnology)
B.Sc. Applied Physical Science
B.Sc. Life Sciences.
B.Tech (Aerospace Engineering)
B.Tech (Mechanical & Automation Engg.)
BAMS
B.Arch
Environmental Studies (KRVIA),
BCA (Bachelor in Computer Applications)

As you have mentioned that you have taken your Diploma. Yes, you can pursue B.Tech in civil engineering through lateral entry. You can get direct admission in 2nd year of B.Tech through lateral entry.

Hi Daljit,
Different programmes and universities have different entry requirements and criteria. Ideally you must have a first class , majority of them asks for more than 75%. You must also take the IELTS, an overall score of 6 is recommended.

You need to clear the entrance exam to get into graduation college for engineering. It depends on your field of interest which course you want to pursue in future.