If you pass your 12th grade in 2013 with low score in the board exams and then opt for improvement exams in 2014, your passing year will still be considered as 2013.The improvement exams are typically conducted for students who want to enhance their scores or grades in specific subjects after their initial board exams. However, regardless of when you take the improvement exams, your passing year remains the same as the year you initially completed your 12th grade, which in this case is 2013.