Hey there! Here are the NCERT books for 9th class that are usually followed in most schools, including Golden Era Academy:

• Maths - mathematics for Class 9
• Science - Science ( includes Physics, Chemistry, Biology)
• English-  Beehive ( Main Textbook), Moments ( Supplementary reader)
• Social Science:  1) History - India and the Contemporary world 1, 2) Geography - Contemporary India 1 , 3) Political Science ( Civics) - Democratic politics -1
• Hindi - Sparsh (  Hindi course book) , Sanchayan ( supplementary course book)

These are the main NCERT textbooks for class 9. Sometimes schools may have other optional books or languages, but these are the core ones.