You can find contemporary editions and digital archives for research:
Bogar is one of the most celebrated among the "18 Siddhars" ( Pathinenn Siddhars ). He is believed to have lived between the 3rd century BCE and 4th century CE, though exact dates are debated. bogar 12000 book in tamil
For those who seek the deepest roots of Tamil Siddha wisdom, the journey begins and ends with the 12,000 verses of Bogar. You can find contemporary editions and digital archives
If you need a specific chapter or concept from Bogar 12000 (e.g., muppu preparation or kaya kalpa), let me know, and I can explain the Siddha context — but I cannot provide the full copyrighted text. muppu preparation or kaya kalpa)