I am graduate in b.com and appearing in m.com. I want to join civil services. How can I do?

Along with u r M.com start preparation from now but it will be better if u join to some reputed institute who provides best quality of teaching for this field. For u r information go to website of Upsc for Indian Civil Service. www.upsc.gov.in

For preparation of civil services you have to prepare for general study because in first exam name CSAT exam all question are from general study , you can read spectrum book for this , for update current affairs read CSR (Competition Success Reviews) magazine , for maths aptitude you can prefer any