Lumdiengsai is a village in Mawryngkneng tehsil in district of East Khasi Hills, Meghalaya, India. As per the data provided by Census of India in 2011, total population of Lumdiengsai was 437 which includes 228 males and 209 females. Lumdiengsai covers N/A area. Pincode of Lumdiengsai is 793012.