dear ayush ,
as per sec 115jb of income tax act,
Lower of (as per company's book)
a)Business loss or
shall be deducted .
So far as ur query relates to carry forward of unabsorbed depre. as per books , so it can be carried fo
forward and next year if co. pays mat then again lower concept be applicable.
In case of mat we are nowhere concerned with income tax sections becoz sec115JB is a self
contained section. mat tax has to be calculated with its governing provs.
IF any further query , u may ask ....