Hello Aspirant,

No, you can't get admission in CEOP through JEE mains since you have scored 50% in 12th boards.
The minimum required percentage in 12th is 75% for the General category and 60-65% for OBC and other.
So according to me you should try for other private colleges. Here I'm giving the list of quite good colleges.
1. VIT
2. IP
3. SRM
4. MIT
5. Hindustan
and many more.