CBSE 12th results

You will get new original marksheet after the improvement exam. You can show your old original marksheet but it will be without improvement and your marks will be less. So it may create problem while aggregate % checking if they checked properly or else no problem. Better to show new one, as there is nothing wrong in it to show.

In order to take admission in IIM Ahmedabad, you must score 70 percentile if you are a general candidate.

You have lots of option, so don't lose hopes. Focus on your exam, complete your class 12th. There are so many colleges who left seats for students appearing in compartment exams. And also, you can do courses which do not require Maths as subject, so just pass your exam first then apply for colleges.

Hi,
You can take admission for Maharashtra using CBSE by filling out the form 1 of the FYJC, you just have to fill the form as there are almost 849 colleges and the forms are out now, so fill it up.

Hi Pallabi Dhalasamanta
Kindly predict your college in this college predictor. JEE Main rank predictor is an online tool which predicts the candidates rank range and probable colleges based on the difficulty level of the examination, average marks scored in JEE Main and seats available in IITs, NITs, GFTIs, and other SFTIs. The rank predicted might not be accurate but it certainly does give an idea to the aspirant. Know your college admission chances based on your JEE Main Rank, Home State, Caste, Gender, etc. Here https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor.

I suggest you a college predictor please visit this link mention below:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
Thank you.

As per my knowledge there is very less chance to get this college
Please use college predictor
https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor&ved=2ahUKEwiizaLH6KfiAhWXYysKHfz2AxsQFjAAegQIAxAB&usg=AOvVaw1N9BzFtyUCP4JU-2UQHQ0H.
Good luck

Expected cutoff will be 85% in CBSE.
Good luck.

Your percentile is good enough to get this college.
Good luck.

There are less chances, but you can try.