Thennankudy is a village in Thirunallar Taluk tehsil in district of Karaikal, Puducherry, India. As per the data provided by Census of India in 2011, total population of Thennankudy was 2,321 which includes 1,165 males and 1,156 females. Thennankudy covers 465.64 ha area. Pincode of Thennankudy is 609607.