Whether return can be revised requiring Audit?

CA ANANT KUMAR (B.COM(H)) (100 Points)

04 August 2010  

An assesee who has filed his return u/s 44 AD (which,infact,required Audit) for assessment year 09-10,now want to revise his return u/s 44 AB,can he do so?If yes,what is the procedure and penalty?