The Combined Engineering Services’ Examination is conducted by the UPSC every year for recruitment to  the four categories of Engineering services
Group A’ Services/Posts:
(a) Civil Engineering (b) Mechanical Engineering (c) Electrical Engineering and (d) Electronics & telecommunication Engineering.

Age: A candidate must have attained the age of 21 years and must not have attained the age of 28 years on the first day of August of the year in which the Examination is being held. The upper age may be relaxed in respect of Scheduled Castes, Scheduled Tribes, Other Backward Classes and such other categories of persons as may from time to time be notified in this behalf by the Government of India, to the extent and subject to conditions notified in respect of each category. The upper age is also relaxable upto 33 years for departmental candidates.

Educational Qualification:

(i) Degree in Engineering from a University or
(ii) Pass in A and B of the Institution Examinations of the Institution of Engineers (India); or
(iii) Degree/diploma in Engineering from such foreign University/College/Institution or
(iv) Pass in Graduate Membership Examination of the Institute of Electronics and Telecommunications Engineers (India); or
(v) Pass in Associate Membership Examination Part II and III/Sections A and B of the Aeronautical Society of India or
(vi) Pass in Associate Membership Examination (Sections A and B) of the Institution of Mechanical Engineers (India) or
(vii) Pass in Graduate Membership Examination of the Institution of Electronics and Radio Engineers, London held after November, 1959
Provided that a candidate for the posts of Engineer, Group ‘A’, in Wireless Planning and Coordination Wing/Monitoring Organization, Ministry of Communications, Indian Broadcasting (Engineers) Service and Indian Naval Armament Service (Electronics Engineering Posts) may possess any of the above qualifications or the qualification mentioned below, namely,
M.Sc. Degree or its equivalent with Wireless Communication, Electronics, Radio Physics or Radio Engineering as a special subject.

For More Information :
The Secretary, Union Public Service Commission, Dholpur House, New Delhi-110011.
http://www.upsc.gov.in/