Thankimnagar Pt I is a village in Sonai tehsil in district of Cachar, Assam, India. As per the data provided by Census of India in 2011, total population of Thankimnagar Pt I was 653 which includes 332 males and 321 females. Thankimnagar Pt I covers 62 ha area. Pincode of Thankimnagar Pt I is N/A.