A torgam is a sort of cupboard used to keep offerings to wrathful deities made of butter and flour called tormas. The doors above depict Mahakala, some cups made of human skulls resting on three skulls, containing tormas and other offerings (see below).
The above skull cups both contain offerings related to the five senses (eyes, ears, heart, nose, tongue).
This is most likely a piece from a ritual bone apron used for Cham dance.
Manjushri is seated in the vajra position on a couple of mythical creatures, brandishing his sword and holding a manuscript at heart level with his main hands. The other hands hold a bow and an arrow. He is adorned with a five-leaf crown, jewellery and a celestial scarf. His hair is topped with a lotus bud finial.
The technique is the same as papier maché but instead of making a pulp with soaked paper the artist uses bits of cloth.