RIE CEE Eligibility

Yes, you are eligible for RIE CEE but your board percentage plays major role in Counselling. So, I would suggest you to improve your board's percentage, because even if you qualify Entrance exam, you need to score well in Boards also. If you are from CBSE, then just simply don't worry about improvement, because CBSE gives one chance to all students to improve their score through improvement exams. You should go through that and all the best.

No. You can't apply. Because you have to submit all your certificates and marks during admission.

RIE CEE is the name of the exam. It has different exams for all the courses. 3 exams are conducted. 1 for B.Sc. B.Ed. And B.A. B.Ed. , 1 for B.Ed. (Arts and Science) and the last one for M.Ed. As you have completed M.A. In english, you can apply for B.Ed (arts). If you have the B.Ed. Degree, you can apply for M.Ed.

Please check for your eligibility to appear for the RIE CEE exam from the criteria mentioned at the link provided below:
https://www.shiksha.com/teaching-education/exams/rie-cee.