cbt exam if ihavechosen a quesfor markforreview and havenotanswered it but the answer given by rrb is also wrong so will i get a extra mark.

Hi Himanshu. Hope your exam went well. In cbt, if one marks a question for review and answers it, then it is considered for evaluation. However, as per your query, you have not answered the question. Now, whether the answer provided by rrb is wrong or right is purely the decision of rrb only. Students are allowed to challenge the answers but the final decision after all analysis is with rrb. If after analysis, rrb finds that the challenge is justified, and it states the answer it gave as wrong, then it may give extra marks to all students or it may drop the question itself. So, do keep yourself informed on the activities. All the best!