Class 12-science

There are various fields apart from engineering. You can go for fashion designing, graphic designing, English honors, mathematics honors, architecture, psychology and many others. Engineering seems to be the only option, but it isn't. It all depends on your interest.
I would suggest you to do a little bit of soul searching and analyze your strengths and weaknesses and then narrow it down to a field or two, then explore the options in that field.
All the best.

You must take the SAT and TOEFL for Bachelor degree studies in USA. Report your test scores to universities you want to apply and check their websites for admission requirements. You must also submit a personal statement, letters of recommendation, etc. The application process is online, so check their websites.

Your IELTS score is very less. You need at least 6.5 band to get into a good university.

Hi,
If you have not scored well with science subjects, then you can either repeat it from National Institute of Open Schooling or appear as a private student from CBSE.

If you want to pursue B.Tech then improve your mathematics. Because mathematics is common for all discipline in initial semesters of engineering. You can keep practicing mathematics problems in XI and XII. It's not at all very tough, but you can easily tackle it with proper planning.

Medical, engineering, dentistry, pharmacy, agricultural science, dairy science, biotechnology, management and many more. Decide what in which field you have interest, if you are fond of mathematics and technical studies probably engineering would suit you well. If you like medical studies, you may choose a medical related program. Similarly, if you would like to change your stream and enjoy analysing and integrating data you may switch to a management field. Almost all options are available to students with PCMB.

You can opt for the following course:
1. B.Sc in PCM
2. M.Sc
3. B.Tech
4. M.Tech
5. D.Pharm

Apart from IT and medicine, there are many options in the field of mechanical, metallurgy, mining, chemical ,civil, electrical and electronics. Students can opt for these branches in engineering and can also go for higher studies after UG.

You can either go for B.Tech if you have interest towards newer technologies or B.Sc. if you want to specialize in particular science stream. In B.Tech, subjects like electrical, electronics and communication and computer science are available. If you have interest in computer science you can also opt for BCA. After Bachelors you can further enhance your skills with Masters degree.