Online platforms, apps, and digital resources can be extremely helpful in complementing your preparation strategy for the Political Science and International Relations (PSIR) exam. Here are some effective ways to utilize these resources:

1. Online Study Materials and E-books:
- Access online platforms like EduRev that provide a wide range of study materials, including notes, question banks, and e-books on various PSIR topics.
- Take advantage of these resources to enhance your understanding of key concepts and theories covered in the syllabus.

2. Video Lectures and Online Courses:
- Look for online platforms that offer video lectures and online courses specifically designed for PSIR preparation.
- These resources can provide in-depth explanations, real-life examples, and expert insights, making it easier to grasp complex topics.
- EduRev offers video lectures and online courses that cover the entire PSIR syllabus, allowing you to learn at your own pace.

3. Online Discussion Forums and Communities:
- Join online forums and communities dedicated to PSIR preparation.
- Engage in discussions, ask questions, and share your knowledge with fellow aspirants.
- Participating in these platforms can help you gain new perspectives, clarify doubts, and stay updated with the latest trends and developments in the field.

4. Mock Tests and Practice Papers:
- Utilize online platforms and apps that offer mock tests and practice papers specifically designed for PSIR.
- These resources allow you to assess your knowledge, identify weak areas, and improve your time management skills.
- EduRev offers a wide range of mock tests and practice papers that simulate the actual exam environment, helping you gauge your preparedness.

5. Online News Sources and Journals:
- Stay updated with current affairs related to politics, international relations, and global events by following reputable online news sources and journals.
- Reading news articles, opinion pieces, and research papers can help you develop a holistic understanding of the subject matter and strengthen your analytical skills.

6. Mobile Apps for Revision:
- Download mobile apps that provide flashcards, quizzes, and revision materials specifically tailored for PSIR.
- These apps allow you to revise important topics on the go, making the most of your idle time.

7. Online Study Groups and Peer Collaboration:
- Form or join online study groups with like-minded aspirants preparing for PSIR.
- Collaborate with your peers, share study resources, discuss difficult topics, and hold virtual study sessions.
- Peer collaboration can enhance your learning experience and provide different perspectives on various topics.

In conclusion, online platforms, apps, and digital resources offer a plethora of opportunities to complement your PSIR preparation strategy. By utilizing these resources effectively, you can enhance your understanding, stay updated, and boost your overall performance in the exam.