CBSE

You can repeat your one year with maths as a subject. You can give the exam of maths next year. You only need to give a single exam of maths. For the same year, it is not possible.
Thank you.

JEE Mains 2018 College Predictor
Use your JEE Mains 2018 rank to see where you can get admission at the link provided below:
See the courses, colleges & rounds you may crack
The result is based on admissions data of JEE Mains 2017
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https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor.

Yes. There are many universities as in Delhi University and IP university, so with 70%, that will be enough for you. The cutoff of Delhi University will be releasing in June, so you may wait for it.

Hi Somay,
Yes, you can take admission in CBSE Board. Every school follows different admission process, you can get in touch with them and you can have detailed information on the admission. Please specify which field you want to opt in airlines, every programme has a different requirement.

PCM Choose their career in chemical engineering.
Go for B.E courses. (aerospace ;aeronautical etc. )
For physiologist go for UG and PG courses. Interested one go for lecturers in teaching field. Go for electrical ; mechanical courses. Make their carriers in information technology. Apply for Bcs. Etc.

Hello, I hope you are doing well. You can check the list of colleges including NITs and IIITs that you can get according to your marks and rank here. Use Shiksha JEE college predictor:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor?utm_source=connect&utm_medium=CR_JEECP&utm_campaign=7489993.

Give the entrance, get a rank then go to counseling and choose college and trade get admission finally.