| Singular | Dual | Plural | |
| Nominative |
अरुणप्सु
aruṇapsu |
अरुणप्सुनी
aruṇapsunī |
अरुणप्सूनि
aruṇapsūni |
| Vocative |
अरुणप्सो
aruṇapso अरुणप्सु aruṇapsu |
अरुणप्सुनी
aruṇapsunī |
अरुणप्सूनि
aruṇapsūni |
| Accusative |
अरुणप्सु
aruṇapsu |
अरुणप्सुनी
aruṇapsunī |
अरुणप्सूनि
aruṇapsūni |
| Instrumental |
अरुणप्सुना
aruṇapsunā |
अरुणप्सुभ्याम्
aruṇapsubhyām |
अरुणप्सुभिः
aruṇapsubhiḥ |
| Dative |
अरुणप्सुने
aruṇapsune |
अरुणप्सुभ्याम्
aruṇapsubhyām |
अरुणप्सुभ्यः
aruṇapsubhyaḥ |
| Ablative |
अरुणप्सुनः
aruṇapsunaḥ |
अरुणप्सुभ्याम्
aruṇapsubhyām |
अरुणप्सुभ्यः
aruṇapsubhyaḥ |
| Genitive |
अरुणप्सुनः
aruṇapsunaḥ |
अरुणप्सुनोः
aruṇapsunoḥ |
अरुणप्सूनाम्
aruṇapsūnām |
| Locative |
अरुणप्सुनि
aruṇapsuni |
अरुणप्सुनोः
aruṇapsunoḥ |
अरुणप्सुषु
aruṇapsuṣu |