I was completed my HSC in Feb-2015 with 51% in 10+2 science stream and in  jee main I got 60 marks due to some financial reason I skipped but now I want to continue my studies in B.tech computer engineering .may the best college that gives us opportunities for better studies and marks improvement as it's already 3 year gap then also they gives a chance for better improvement.

Sorry ,am not getting the your question.Can you  please explain it brifly. 

Please rephrase your question I didn't get you...