Declension table of ?ṛṣat

Masculine	Singular	Dual	Plural
Nominative	ṛṣan	ṛṣantau	ṛṣantaḥ
Vocative	ṛṣan	ṛṣantau	ṛṣantaḥ
Accusative	ṛṣantam	ṛṣantau	ṛṣataḥ
Instrumental	ṛṣatā	ṛṣadbhyām	ṛṣadbhiḥ
Dative	ṛṣate	ṛṣadbhyām	ṛṣadbhyaḥ
Ablative	ṛṣataḥ	ṛṣadbhyām	ṛṣadbhyaḥ
Genitive	ṛṣataḥ	ṛṣatoḥ	ṛṣatām
Locative	ṛṣati	ṛṣatoḥ	ṛṣatsu

Compound ṛṣat -

Adverb -ṛṣantam