Bogar Karpam 300 Book has mostly got the information related to Tamil Siddha Medicine.

Bogar as a Tamil siddhar who lived sometime between 550 and 300 BCE. More specifically Bogar belongs to a group within 18Siddhars .Bogar is considered as a contemporary of Thirumoolar. Bogar is said to be in Nirvigalpa Samadhi below the sanctum sanatorium of Palani Murugan hill temple,a state where the yogi is mediating immersed inside water.