Declension table of ?adhastana

Masculine	Singular	Dual	Plural
Nominative	adhastanaḥ	adhastanau	adhastanāḥ
Vocative	adhastana	adhastanau	adhastanāḥ
Accusative	adhastanam	adhastanau	adhastanān
Instrumental	adhastanena	adhastanābhyām	adhastanaiḥ adhastanebhiḥ
Dative	adhastanāya	adhastanābhyām	adhastanebhyaḥ
Ablative	adhastanāt	adhastanābhyām	adhastanebhyaḥ
Genitive	adhastanasya	adhastanayoḥ	adhastanānām
Locative	adhastane	adhastanayoḥ	adhastaneṣu

Compound adhastana -

Adverb -adhastanam -adhastanāt