Yes, self-study is possible to crack the FDDI AIST. Many candidates have successfully prepared on their own by following these strategies:

1. Structured Study Plan: Create a detailed plan covering all exam sections.

2. Use Quality Resources: Refer to textbooks, online tutorials, and previous years' papers.

3. Practice Regularly: Work on mock tests and sample papers to improve speed and accuracy.

4. Focus on Weak Areas: Identify and strengthen your weaker sections.

5. Stay Updated:  Keep up with current affairs and industry trends relevant to the exam.