hi i have done diploma in mechanical engg and four year experience in defence can i do mba from aicte approved colleges

amit you can do your mba from AICTE approved colleges , that's good you have 4 year experience . I suggest if you want to do your mba in this year then fill CAT 2010-2011 form . Now days its runing . Don't think that you have diploma because its worthy graduation . And you also fill another form