Here’s what you can do to find a legitimate Telugu PDF:
Mahidhara, originally from Varanasi, compiled the Mantra Mahodadhi into (chapters). He also authored a commentary titled Nauka ("Boat") to help practitioners navigate the "ocean" of mantras. The work is a Nibandha (compilation), where the author gathered scattered esoteric knowledge into a structured format for the benefit of seekers. Core Themes and Content
Yes, some scanned versions from old libraries are in the public domain. However, professionally edited versions may require purchase.