Explanation: It is also pertinent to mention the Siddhas (or Sittars) of Tamil Nadu, who held contrasting views with the Bhakti tradition, although some of their ideologies are considered to have originated during the first Sangam Age.

• Siddhas are also believed to be the founders of Varmam, a kind of martial art for self-defence and medical treatment simultaneously.
• Varmam are specific points located in the human body, which, when pressed in different ways can give various results, such as disabling an attacker in self-defence, or balancing a physical condition as an easy first-aid medical treatment.

Source: NCERT