Tirtha Bahadur Lama is a Nepali politician. His political party is Nepali Congress. Lama, who is the minister for Drinking Water, Energy and Irrigation of Bagmati province is currently serving as member of Bagmati Provincial Assembly. Lama was elected from Kavrepalanchowk 1(B).^[1]

Lama is also a former member of 2nd Nepalese Constituent Assembly. In 2013, he was elected to Kavre–1 seat in the assembly.^[2]