Declension table of ?paryasana

Neuter	Singular	Dual	Plural
Nominative	paryasanam	paryasane	paryasanāni
Vocative	paryasana	paryasane	paryasanāni
Accusative	paryasanam	paryasane	paryasanāni
Instrumental	paryasanena	paryasanābhyām	paryasanaiḥ
Dative	paryasanāya	paryasanābhyām	paryasanebhyaḥ
Ablative	paryasanāt	paryasanābhyām	paryasanebhyaḥ
Genitive	paryasanasya	paryasanayoḥ	paryasanānām
Locative	paryasane	paryasanayoḥ	paryasaneṣu

Compound paryasana -

Adverb -paryasanam -paryasanāt