Tshogzhing Lhakhang (Chapel of the Tree of Merit (6th floor)).
The Tshogzhing Lhakhang comprises of a three dimensional tree mandala rep-resenting the four major schools of Vajrayana Buddhism in the eastern Himalayan region such as the old sect (Nyingma), Black hat sect, (Kagyu), Shakya sect and Gelugpa – Yellow hat sect, spiritual masters, tutelary and protecting deities for the purpose of veneration and worship by the visitors and the public and large. It is located on the sixth floor and was created by the prominent clay master Lopen Damcho along with his apprentice artisans in 1968.