The Civil Services Examination (CSE) is a nationwide competitive examination in India conducted by the Union Public Service Commission for recruitment to various Civil officers and judicial officers of the state of central government of India

There is no official Civil Service Examination Site available.

Details about civil services exams:

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 .

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

Group A Services

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

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