Step 1: Siddha diagnosis uses Eight Diagnostic Methods (Envagai Thervu).
Step 2: Nadi (pulse reading) is the foremost method to identify Uyir Thathukkal imbalance (Vatham, Pitham, Kabam).
Step 3: Naadi Pariksha is the Sanskrit term but in Siddha it’s simply “Nadi”.
Step 4: Neerkkuri is urine analysis; Malam is stool examination.