SSC CGL Examination can be cleared by candidates keeping in mind the following strategies. There are 4 tiers in the SSC CGL Exam and the candidates should be focussed on covering the syllabus with dedication.
Tier 1: Approximately 3 months are ideal for the preparation provided you spend 4-5 hours a day. During this time the candidate should aim for proficiency in Verbal and Quantitative Skills for they are necessary to clear the Tier 2 Cut-Offs. Another important thing which is not to be missed is the importance of mock tests which provide the candidates with sufficient practice to solve problems online since it is a computer-based test. There are many questions that are repeated and thus it gives the candidates a chance to get familiar with the questions asked.

Tier 2: Tier is totally concentrated on the subjects of English and Mathematics. While Mathematics is logic-based, English requires memorizing a lot of stuff. 3 months are sufficient for the preparation of Tier 2. Mathematics includes a series of problems from the basics from the topics of Mensuration, Geometry and Algebra and English concentrates on vocabulary and para jumbles

Tier-3: This tier is somewhat luck-based since the essay or letter can be asked on any topic. So the best way is to read a lot of articles and work on Grammar or Vocabulary.