Natyashastra
इत्येवं तु भ्रुवः प्रोक्तं नासाकर्म निबोधत । नता मन्दा विकृष्टा च सोच्छ्वासा च विकूणिता ॥ १३०॥
Gestures of the eyebrows have been described; now listen about those of the nose. They are of six kinds: Natā, Mandā, Vikṛṣṭā, Socchvāsā, Vtkūṇitā.
english translation
ityevaM tu bhruvaH proktaM nAsAkarma nibodhata । natA mandA vikRSTA ca socchvAsA ca vikUNitA ॥ 130॥
hk transliteration by Sanscript