The Civil Services Examination (CSE) is a nationwide competitive examination in India conducted by the Union Public Service Commission for recruitment to various Civil Services of the Government of India, including

Indian Administrative Service (IAS)
Indian Foreign Service (IFS)
Indian Police Service (IPS) and
Indian Revenue Service (IRS)

The examination consists of the following three stages:

Stage I: Preliminary examination - A qualifying test advertisied in May and held in August each year. Results are published in mid-October.
Stage II: Main examination - Held in December every year. Results are usually published in the second week of March.
Stage III: Personality Test (interview) - held in April/May each year. Final results are usually announced in May .

The training program for the selected candidates usually commences the following September.

List of Services

Following are the services which one gets on qualifying the Civil Service Examination.[9]

Group A Services

Indian Foreign Service
Indian Administrative Service
Indian Police Service
Indian Revenue Service (Income Tax)
Indian Revenue Service (CBEC)
Indian Post & Telecommunication Accounts and Finance Service
Indian Audit and Accounts Service
Indian Defence Accounts Service
Indian Ordnance Factories Service
Indian Postal Service
Indian Civil Accounts Service
Indian Railway Traffic Service
Indian Railway Accounts Service
Indian Railway Personnel Service
Railway Protection Force
Indian Defence Estates Service
Indian Information Service
Indian Trade Service
Indian Corporate Law Service

Group B Services

Armed Forces Headquarters Civil Service
Delhi, Andaman and Nicobar Islands Civil Service
Delhi, Andaman and Nicobar Islands Police Service
Pondicherry Civil Service
Pondicherry Police Service