Nedungadu 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 Nedungadu was 4,886 which includes 2,396 males and 2,490 females. Nedungadu covers 455.92 ha area. Pincode of Nedungadu is 609603.