The Civil Services Examination 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:
The Indian Administrative Service (IAS),
Indian Foreign Service (IFS),
Indian Police Service (IPS)
Indian Revenue Service (IRS)

Exam Dates:-

Civil Services (Preliminary) exam 2016:- 07.08.2016 (Sunday).
Civil Services (Main) exam, 2016:- 03.12.2016 (Saturday)
Duration of exam:- 5 days


Civil services exam date:-
Civil services (Preliminary) exam. 2017
Date of notification (Wednesday)- 22.02.2017
Last date for receipt of applications - 17.03.2017 (Friday)
Date of commencement of Exam - 18.06.2017 (Sunday)
Duration of Exam - 1 Day

Civil services (Main) Exam,
Date of Commencement of exam - 28.10.2017 (Saturday)
Duration of exam - 5 days

Civil services List of Services:

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