I want to study abroad for MBA.but I dont have work experience.is it necessary for all abroad colleges to take admission with work experi.?

not certainly, in some institutions it is required but not everywhere. you have to crack the examination for going abroad . some exams conducted are SAT, MCAT, LSAT, GMAT, GRE, IELTS and the TOEFL. These are required for admission to universities and colleges in various countries across the globe.