Declension table of hyastana

Neuter	Singular	Dual	Plural
Nominative	hyastanam	hyastane	hyastanāni
Vocative	hyastana	hyastane	hyastanāni
Accusative	hyastanam	hyastane	hyastanāni
Instrumental	hyastanena	hyastanābhyām	hyastanaiḥ
Dative	hyastanāya	hyastanābhyām	hyastanebhyaḥ
Ablative	hyastanāt	hyastanābhyām	hyastanebhyaḥ
Genitive	hyastanasya	hyastanayoḥ	hyastanānām
Locative	hyastane	hyastanayoḥ	hyastaneṣu

Compound hyastana -

Adverb -hyastanam -hyastanāt