Civil Services Examination (CSE) is conducted by UPSC for the recruitment to the Services and Posts (Gazetted). CSE exam is conducted by Union Public Service Commission (UPSC) once in a year. One can find its notification on the official website of UPSC

Main services under CSE are :

Indian Administrative Services (IAS)
Indian Foreign Services (IFS)
Indian Police Services (IPS)

Indian Revenue Services (IRS)

Male & Female candidates of age 21-32 years (OBC-35, SC/ST-37)

The maximum number of attempts for the CSE

General Category : 6

OBC : 9

SC/ST : Till Upper Age(Irrespective of no. attempts)