MBA, want to set own business, expecting earning 20 thousand, investment 2-3 lac, pls provide business ideas.?

MBA in mktg and having exp of 10 year in lubricants and others, now want to set up self business and searching for option, best ideas, where i get monthly earning of 20-30 lac easily, where investment needed only 2-3 lac initially, where growth prospectus is higher, where demand and potetial is higher, where i can give my best, please give me your best suggeston, ideas, information, best on the exp or reliable sources.