Monotonous Work,No Experience

I am employed in a firm at chennai,I have been put in two banks' concurrent audit since January 2009,I ve not been releived from there till date.I ve not gained experience in other areas like corporate audit,taxation and my firm's partner is very less likely to place me anywhere else.i ve already completed 2 yrs of articleship.like me,there are 4 more articled suffering in my office.We have 5 concurrent audits.I cant go out of city to continue my articleship.there has been no appointment of new article assts dor the past 1.5 yrs and my partner says he wont releive me until he gets new hands.He says the cost of appoinment of  other audit staff is more than the benefit (fees) of concurrent audit.So he can only place articles.What shall i do to get rid of the monotonous work?