How to Crack SSC CGL Tier 1 in 90 Days: The Ultimate Study Plan for 2025

The clock is ticking. With roughly three months left for the SSC CGL Tier 1 2025 exam, many aspirants are feeling the pressure, wondering if it's still possible to prepare effectively and clear the first crucial hurdle. Let's answer that question right away: yes, it is absolutely possible. However, it requires a shift from casual study to a laser-focused, intensive, and highly strategic plan.

This is not a generic preparation guide; this is your ultimate 90-day battle plan. We will provide a meticulously structured, phase-based study plan that covers every section—Quantitative Aptitude, Reasoning, English, and General Awareness. This roadmap will guide you on what to study, when to practice, and how to use mock tests to peak at the right time. If you are ready to commit with discipline, these next 90 days can change your future.

The 90-Day Philosophy: The 50-30-10 Rule

To conquer the syllabus in a limited time, we will break down our 90-day plan into three distinct phases, each with a clear objective.

Phase 1 (First 50 Days): Syllabus Coverage & Conceptual Clarity. The goal is to cover all the important topics from scratch and build a strong conceptual foundation.
Phase 2 (Next 30 Days): Aggressive Practice & Mock Analysis. The focus shifts from learning to application, speed-building, and identifying weaknesses through intensive mock tests.
Phase 3 (Last 10 Days): Intensive Revision & Consolidation. This is the final lap, focused on revising all formulas and notes, and building a calm, confident exam-day mindset.

Phase 1 (Day 1-50): Building Your Foundation

This is the most crucial phase where you will do the heavy lifting of learning new concepts.

The Weekly Structure

Follow a structured weekly schedule. For example:

Monday & Thursday: Quantitative Aptitude (2 hours)
Tuesday & Friday: General Intelligence & Reasoning (2 hours)
Wednesday: English Comprehension (2 hours)
Saturday: Weekly Revision (3-4 hours)
Sunday: Full-Length Mock Test (1 hour) + Analysis (2-3 hours)
Daily: General Awareness (45-60 minutes)

Subject-Wise Focus for Phase 1

Quantitative Aptitude: Your first priority should be to master the entire Arithmetic section (Percentage, Profit & Loss, TSD, etc.) as it has the highest weightage. Once done, move to core topics in Algebra and Geometry.
Reasoning: This is a high-scoring section. Systematically cover all topics from Analogy, Classification, and Series to Syllogism, Coding-Decoding, and Blood Relations.
English: Focus on two things: building your vocabulary by learning 10-15 new words daily, and mastering the core grammar rules from a standard textbook (like SP Bakshi or Plinth to Paramount).
General Awareness (GK): This requires daily effort. Split your time between Static GK (focus on History, Polity, and General Science) and Current Affairs (from the last 6 months).

Phase 2 (Day 51-80): Practice, Mocks, and Analysis

In this 30-day phase, your focus shifts dramatically from learning to application and strategy. Mock tests are now the center of your universe.

The Mock Test Cycle

Frequency: Increase your mock test frequency to **one every alternate day**. For example, take a mock on Monday, Wednesday, and Friday.
Analysis: The day after each mock (Tuesday, Thursday, Saturday) should be dedicated to a deep analysis of that mock. This is non-negotiable. Spend at least 2-3 hours analyzing every single question, including the ones you got right.
The Error Log: Maintain a notebook where you write down every mistake you make. Categorize them: Was it a silly mistake? A conceptual gap? A strategic error? This log will become your most valuable revision tool.

The Goal of This Phase

Use your mock analysis to identify your specific weak areas. The time between mocks should be spent exclusively on practicing these topics. If you are consistently getting Algebra questions wrong, dedicate the entire day to solving Algebra problems. This targeted approach is the fastest way to improve your score.

[Now that you know the plan, it's time to choose your dream post. See our ranking of the Top 10 SSC CGL Posts.]

Phase 3 (Day 81-90): The Final Countdown

This is the final lap. The goal here is consolidation and building a calm, confident mindset.

The "No New Topics" Rule

Under no circumstances should you try to learn a completely new topic in the last 10 days. It will only create panic and confusion. Your knowledge base is now locked; the focus is on sharpening it.

The Revision Strategy

Go through your handwritten notes, especially Quant formulas and English grammar rules, every single day.
Quickly revise the last 6 months of current affairs from a compilation.
Most importantly, review your mock test error log. Re-attempt the questions you got wrong to ensure you have truly learned from your mistakes.
Take your final mock test about 5-7 days before the exam. Do not take any mocks after that.

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Conclusion: Discipline is Your Superpower

Cracking the SSC CGL Tier 1 in 90 days is a formidable challenge, but it is far from impossible. It requires you to trade casual study for disciplined execution. This phased plan—50 days for foundation, 30 for practice, and 10 for revision—provides the structure. Your consistency and dedication will provide the results.

Trust the process, stick to the schedule, and analyze your mistakes relentlessly. These next three months are an opportunity to completely transform your preparation and your future.