If u want to crack EPFO SSA Entrance Exam then u should study the following:
1. Test of Reasoning
2. Test of English Language
3. Test of Numerical Ability
4. Test of Office Aptitude
You can purchase Kiran's Publication's Book for preparation.
For Social Security Assistant:
The Recruitment process will have two stages:
i) Written examination (multiple choice objective type – English language, test
of reasoning, numerical ability, office work aptitude).
ii) Skill test to assess speed and accuracy for Data Entry Work. Minimum
requirement is 5000 key depressions per hour.