Udalthana I is a village in Chawngte tehsil in district of Lawngtlai, Mizoram, India. As per the data provided by Census of India in 2011, total population of Udalthana I was 786 which includes 395 males and 391 females. Udalthana I covers N/A area. Pincode of Udalthana I is 796770.