Declension table of hyastana

Masculine	Singular	Dual	Plural
Nominative	hyastanaḥ	hyastanau	hyastanāḥ
Vocative	hyastana	hyastanau	hyastanāḥ
Accusative	hyastanam	hyastanau	hyastanān
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