The health department administered vaccination to the Haj pilgrims through camps held at Vellore on Monday.
The Health Services department officials said that as per international health standards, it has been made mandatory for people going for the Haj pilgrimage to receive meningitis and oral polio vaccine.
They administered the vaccination to 318 pilgrims at Vellore and issued them international health certification with a seal, which is mandatory to enter Mecca.
Pilgrims from Vellore, Katpadi, Gudiyatham, Arcot, Arakkonam, Arani, Vandavasi and Ranipet were hosted.
Similar camps will be held at Ambur on Tuesday and Vaniyambadi on Wednesday with an expected footfall of 265 and 170 pilgrims from various parts of the state and country respectively .