about the study of SDM(CITY)

Hi, A Sub-Divisional Magistrate is a title sometimes given to the head official of a country subdivision, an administrative unit that is sometimes below the level of district, depending on a country's government structure. In India, a sub-divisional magistrate has several executive and magisterial

For becoming SDM you need to first complete your graduation and then give the PSC prelims exam of your state. When you clear the prelims you shall give Mains exam and on coming imn merit there you will be called for interview.