hello aspirant,

To become sub divisional magistrate for chattisgarh you need to give the exam,chattisgarh public service commision examination.for that you need to first graduate from any stream and qualify the psc exam.and you need to have a really good rank to get into the post of sdm.

for more information about exam and details you can refer to: https://competition.careers360.com/exams/cgpsc-state-service-exam

you can refer to newspapers like business standard,the hindu,indian express,times of india etc and check the syllabus: https://competition.careers360.com/articles/cgpsc-syllabus

hope this helps,

thankyou.