Another angle: the user might not have the money to buy the book and is looking for free resources. In that case, I should mention that while I can't help with that, there are free resources available from legitimate sources or libraries.

First, I need to recall that MS Chauhan's book is a popular resource for NEET aspirants in India. It's known for its problem sets, so the user is likely a student preparing for the exam. They might be looking for the PDF version because they want convenience or can't purchase the physical book.

I need to balance between being helpful and ensuring compliance with copyright laws. The sample text should be a template for a download link, but include disclaimers and ethical considerations.

In summary, the response should guide the user towards legal options first, include a sample text that a user might post with a disclaimer, and ensure that all information is accurate and respectful of intellectual property laws.