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B.Ed is not considered eligible to apply for teaching in Higher Secondary Schools or Colleges. As you have mentioned that you want to teach management, the subject is taught either in the higher secondary level or in colleges offering degree programs. Therefore, in order to be eligible to teach in HS level, you must hold a Masters degree. Apart from that, you will also have to qualify Teacher Eligibility Test conducted State as well as on National Level.
To be eligible to teach in colleges/Universities, apart from holding a Masters degree, you will have to qualify National Eligibility Test for Lectureship or the State Eligibility Test for Lectureship, both conducted under the regulation of University Grant Commission. To be eligible for the test, you will have to score a minimum of 55% in your Masters degree examination.