Preparing for the GATE (Graduate Aptitude Test in Engineering) exam requires consistent and dedicated effort. With 9 months of preparation time, it is crucial to allocate a significant portion of each day for studying. Let's break down the recommended time allocation for GATE exam preparation in one day:

1. **Overview of the Day**:
- Begin by setting specific goals and targets for the day.
- Plan a schedule that includes breaks to maintain focus and avoid burnout.

2. **Morning Study Time**:
- Start the day with a fresh mind and concentrate on challenging topics.
- Allocate around 3-4 hours for focused study during this time.
- Begin with subjects or topics that require more attention or are considered difficult.

3. **Afternoon Break and Revision**:
- Take a break of 1-2 hours for lunch and relaxation.
- Utilize this time for revising previously studied topics.
- Review important concepts, formulas, and problem-solving techniques.

4. **Afternoon Study Time**:
- Allocate another 3-4 hours for studying in the afternoon.
- Focus on different subjects or topics during this session.
- Solve practice questions and numerical problems to enhance understanding and speed.

5. **Evening Break and Physical Activity**:
- Take a break of 1-2 hours for physical exercise, such as walking or jogging.
- Engaging in physical activity helps refresh the mind and improves concentration.

6. **Evening Study Time**:
- Dedicate 2-3 hours for studying in the evening.
- Focus on subjects or topics that require less time and effort compared to the morning session.
- Solve previous years' question papers to familiarize yourself with the exam pattern and time management.

7. **Night Revision and Relaxation**:
- Allocate 1-2 hours for revision in the late evening.
- Review the concepts and topics studied throughout the day.
- Make short notes or mind maps for quick revision.

8. **Night Sleep**:
- Ensure a good night's sleep of at least 7-8 hours.
- Sufficient rest is vital for memory consolidation and overall well-being.

Remember, the above time allocation is just a suggestion and can be adjusted based on personal preferences and study needs. It is important to maintain a balanced approach, covering all subjects, practicing regularly, and revising consistently. Additionally, join online forums or study groups to exchange knowledge and learn from others.