Declension table of ?upaniṣādin

Masculine	Singular	Dual	Plural
Nominative	upaniṣādī	upaniṣādinau	upaniṣādinaḥ
Vocative	upaniṣādin	upaniṣādinau	upaniṣādinaḥ
Accusative	upaniṣādinam	upaniṣādinau	upaniṣādinaḥ
Instrumental	upaniṣādinā	upaniṣādibhyām	upaniṣādibhiḥ
Dative	upaniṣādine	upaniṣādibhyām	upaniṣādibhyaḥ
Ablative	upaniṣādinaḥ	upaniṣādibhyām	upaniṣādibhyaḥ
Genitive	upaniṣādinaḥ	upaniṣādinoḥ	upaniṣādinām
Locative	upaniṣādini	upaniṣādinoḥ	upaniṣādiṣu

Compound upaniṣādi -

Adverb -upaniṣādi