ramesh ji, its very good to hear that you already have a TA. It seems that you really worked hard for it. UofM is a very good school and you don't have to pay the tuition!!! Doesn't that sound great? Don't worry much about money. Generally you will get enough to have a decent living. If I were you I wouldn't be much worried about working outside and earning a couple of extra dollars, that wouldn't make much of change.