Tatwanagi is a village in Haliyal tehsil in district of Uttara Kannada, Karnataka, India. As per the data provided by Census of India in 2011, total population of Tatwanagi was 1,594 which includes 817 males and 777 females. Tatwanagi covers 1032.29 ha area. Pincode of Tatwanagi is 581329.