how much percentage should I get in 12th std to be eligible for engineering ?
There is a new eligibility criteria for JEE Main.
You can check the complete criteria below:
JEE Eligibility Criteria
All the best!
According, to the new eligibility criteria you should have 75% marks in your boards exam or you should be in top 20 percentile to take admission in NITs/IIITs/IITs and GFTIs.
Every colleges have different eligibility criteria. Are you asking for any specific college?