To start with, Infinity subscription is an excellent choice for UPSC aspirants as it provides access to a vast collection of study material, mock tests, and previous year's papers. However, to have a comprehensive preparation for the UPSC exam, you may require additional subscriptions, depending on your needs.

Here are the details on why other subscriptions are needed, and how they can help you in your UPSC journey:

1. Pre and Main batch subscription:

GS Pre and Mains, and Geography for Mains are some of the crucial subjects that you need to cover for the UPSC exam. The pre and main batch subscription provides you with comprehensive coverage of these subjects, including in-depth analysis, current affairs, and practice tests. This subscription will help you in the following ways:

- Provide you with a structured approach to cover the syllabus.
- Help you in understanding the concepts in-depth.
- Provide you with current affairs updates related to the subject.
- Offer you practice tests to assess your preparation level.

2. Geography for Mains subscription:

Geography is an essential subject for UPSC mains, and it requires a lot of understanding of maps, diagrams, and case studies. The Geography for Mains subscription provides you with the following benefits:

- Covers the entire syllabus of Geography for mains.
- Provides in-depth analysis and explanation of maps, diagrams, and case studies.
- Offers practice tests to assess your preparation level.

3. GS Pre and Mains subscription:

The GS Pre and Mains subscription provide comprehensive coverage of all the subjects included in the UPSC syllabus. This subscription will help you in the following ways:

- Provide you with a structured approach to cover the syllabus.
- Help you in understanding the concepts in-depth.
- Provide you with current affairs updates related to the subject.
- Offer you practice tests to assess your preparation level.

Now, coming to your question, if you have purchased the Infinity subscription, it means you have access to a vast collection of study material and mock tests. However, to have a comprehensive preparation, you may require additional subscriptions, as mentioned above. So, if you feel that you need additional help in any particular subject, you can opt for the relevant subscription.

In conclusion, to have a comprehensive preparation for the UPSC exam, you may require additional subscriptions, depending on your needs. So, choose the subscription wisely and focus on covering the entire syllabus. All the best for your UPSC journey!