Hi Aman!!! Based on your results it is not possible to get a seat through jee mains since you don't meet the eligibility criteria.  It is required that a candidate must score atleast 75 percent in boards to be eligible for admission through jee mains. You should go for private colleges or other colleges through different entrance exams.  You can check the eligibility criteria using the following link: https://engineering.careers360.com/articles/jee-main-eligibility-criteria/amp