If you want to improve your performance in Board’s Exam, you can do so but for consideration of that year’s result you have to appear in all the subjects (as per the scheme of studies of your Board, 5 subjects in case of CBSE) and not partially. You can not improve in one/two subjects and add them to previous years’ performance.
Editor answered 11 years agoLife isn't about finding yourself. Life is about creating yourself. - George Bernard Shaw