Greetings aspirant,

With a 66 percentile in JEE Main, you may have limited options for top tier government engineering colleges like NIT or IITs, but you can still find opportunities in some lower ranked NITs, GFTIs and state government colleges. If you are from reserved category then your chances of getting into certain colleges will be higher due to lower cut offs. You can try exploring some private colleges. For more information you can use the college predictor tool to know about all the colleges you can get with this percentile. Click on the link given below.

https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer