Hi Ravi,

Please be assured that if you somehow fail in the class XII improvement examination although which is very unlikely to happen then your previous year's class XII marks will be considered and your current year's marks won't be considered. This is the reason this exam is called the improvement examination because either there is increment or rather improvement or there is no change of marks at all.

So now that you have this doubt cleared, devote all your hard work and concentration towards the preparation for the examination and nothing else so that your results of the improvement examination reflects your dedication, hard work and commitment towards achieving your goals in life.

BEST WISHES!