What is the SSC CHSL exam?
SSC CHSL — the Combined Higher Secondary Level (10+2) Examination — is the Staff Selection Commission's recruitment exam for Group C posts such as Lower Division Clerk / Junior Secretariat Assistant (LDC/JSA), Data Entry Operator (DEO) and Postal Assistant / Sorting Assistant (PA/SA) in various ministries, departments and offices of the Government of India. It is one of India's most popular exams for 12th-pass candidates, offering a stable central-government career to lakhs of aspirants each year.
The selection has two computer-based tiers plus a skill test. Tier I is a 60-minute, 100-question paper across four equal sections — General Intelligence & Reasoning, General Awareness, Quantitative Aptitude and English Language — set at the 10+2 level. Tier II, now the deciding stage, tests Mathematical Abilities & Reasoning, English & General Awareness and Computer Knowledge, and includes a Skill Test / Typing Test (data entry for DEO, typing for LDC/JSA and PA/SA). Because Tier I has negative marking and is speed-based, accuracy under time is what carries you through to Tier II.

