Hello adla . I m sorry to inform you that its difficult for you to get seat into any prestigious institution of engineering with this jee score bcoz they require higher cutoffs as well as you want computer science branch which is almost impossible so I will suggest you to give other exams like bitsat , or viteee and score really good to get your branch of desire.but if you still wants to get cse through jee score then go for private colleges like manipal or thapar they always have management quota

Hope it helps