A traditional Indian fragrance. Nag Champa contains a large proportion of sandalwood and the frangipani fragrance, which comes from the champa (or plumeria) flower.
It's specific fragrance is very powerful and can be overwhelming in confined spaces. Anecdotal evidence supports the idea that it can even overpower the smell of smoked tobacco usage.

Top – floral
Middle – Patchouli, wood, orange flower
Bottom – sugared musk, sandalwood, vanilla, resin