Most Indian medical publishers now have their own apps (like CBS Digital or eCBC). You can rent or buy the official eBook for roughly half the price of the physical book. This is the closest you will get to a legal "PDF download."

If you are struggling to find a legitimate digital copy, consider these similar resources:

Since you want a "PDF," you could buy a used physical copy for ₹300 and scan the specific chapters you need for personal use (fair use). This keeps you legally safe.

Often, these platforms have digitized "General Practice" within their notes section or offer a library pass. If you already pay for an entrance coaching app, check their "e-Library."