The Staff Selection Commission (SSC) conducts the Combined Graduate Level Prelims Exam once a year for selection of candidates for the main Examination. SSC CGL Tier I is mandatory for all the posts and if you do not clear cut-off of Tier I Exam then you will not be eligible for Tier II. Below table shows the section wise breakup of questions and marks for SSC CGL Tier I exam.
| Part | Subject | Questions | Marks | Total Timing |
| I | General Intelligence and Reasoning | 25 | 50 | 60 minutes (For VH/OH – 80 minutes) |
| II | General Awareness | 25 | 50 |
| III | Quantitative Aptitude | 25 | 50 |
| IV | English Comprehension | 25 | 50 |
The written examination consists of Objective Type – Multiple choice questions only. The questions will be set both in English & Hindi for Part-I, II, III. There will be negative marking of 0.50 marks for each wrong answer.