Sometimes solutions are not officially uploaded, but the comment section and forum threads on QuestionPaper.in have detailed discussions by toppers. You can also cross-check with NCERT.
At least the last 8 years. But if you have time, go back 12 years. The 2012-2014 papers have exceptionally tricky reasoning questions. Sometimes solutions are not officially uploaded, but the
Your white coat with the olive green uniform is waiting. The questions you need to succeed are already on the internet, free and ready. All you have to do is put in the work. Sometimes solutions are not officially uploaded