It's a medieval Indian text, often associated with occult practices, astrology, black magic (tantra-mantra), and remedies for various problems. It is attributed to Sage Nilavanti or sometimes linked to Garuda Purana traditions. The text contains rituals, spells, and remedies using herbs, mantras, and yantras.

I understand you're looking for a review of the Nilavanti Granth (also known as Nilavathi Granth or Neelavanti Granth ) and its full PDF. However, I need to provide some important context:

Would you like a summary of typical contents, or help finding an authorized printed edition?