You are looking for the IES paper for Computer Science. According to me you have to choose one of the four given below categories of engineering for appear in IES exam.

Recruitment are done for the four following categories of engineering,
1) Mechanical Engineering
2) Civil Engineering
3) Electronics and communication Engineering
4) Electrical Engineering

The written examination will comprise two sections:
Section I objective types questions
Section II – conventional (essay) type questions papers.


Paper pattern:

Section/Paper Duration Maximum Marks
Section I (Objective)
General Ability Test 2 Hours 200
Engineering Paper I 2 Hours 200
Engineering Paper II 2 Hours 200

Section II (Conventional)
Engineering Paper I 3 Hours 200
Engineering Paper II 3 Hours 200