Can reversal be done on segment wise.
for example
I have 3 segments
segment 1- 100% taxable sale
sale value 10 lakh
Input 50 k
segment 2-100% exempt sale
sale value 10 lakh
and no input is taken of this segment
segment 3- both taxable and exempt sale
total sale value 10 lakh of this 7lakh taxable and 3 lakh exempt
Input 50 k
Reversal= 50k*3lakh/10lakh
or
50k*3lakh/30lakh