Tamlichha is a village development committee in Udayapur District in the Sagarmatha Zone of south-eastern Nepal.
At the time of the 1991 Nepal census it had a population of 2528 people living in 458 individual households.
Coordinates: 27°06′21″N 86°39′06″E / 27.10583°N 86.65167°E / 27.10583; 86.65167