I, HARSHITH. P S/O P.S.SRINIVASA RAO studied cbse 12th standard. Unfortunately I could not write two papers MATHEMATICS, AND COMPUTER SCIENCE(of cbse 12th standard) in 2013 due to sudden ill health and hospitalised on the examination dates. I am an IIT aspirant and wish to write IIT(MAIN) in next year ie., 2014.I would like to clarify my doubt whether am I allowed to write my cbse 12th IMPROVEMENT EXAMINATION in all the subjects.I have already passed other subjects except MATHS AND COMPUTER SCIENCE including practical examinations of science and computerscience subjects. What is the procedure?