Hey there

CA foundation has four subjects

1. Principles and practice of accounting.

2. Business laws and business correspondence and recording.

3. Business mathematics, logical reasoning and statistics

4. Business economics and business and commercial knowledge.

Check detailed plan for CA foundation preparation

https://www.google.com/url?sa=t&source=web&rct=j&url=https://finance.careers360.com/articles/ca-foundation-syllabus/amp&ved=2ahUKEwizxNOv3IDlAhXPfH0KHXDgCb4QFjACegQIEBAJ&usg=AOvVaw3N54u-34m_7T_Jrj0j6Ssk&ampcf=1

Good luck