Can my wife also be explored as a primary applicant for study abroad, and how should she prepare for IELTS and mock tests?

Yes, your wife can be considered as the primary applicant for studying abroad, as long as she meets the admission and visa requirements of the destination country.

For IELTS preparation, she should:
- Understand the test format: Listening, Reading, Writing, and Speaking.
- Take a diagnostic test to identify strengths and weaknesses.
- Follow a structured study schedule, focusing on weaker areas.
- Use official IELTS practice materials and take mock tests for real exam practice.
- Practice under timed conditions and review model answers.
- Consider joining IELTS coaching or online classes for additional support.