Declension table of ?ṛṣṭividyut

Masculine	Singular	Dual	Plural
Nominative	ṛṣṭividyut	ṛṣṭividyutau	ṛṣṭividyutaḥ
Vocative	ṛṣṭividyut	ṛṣṭividyutau	ṛṣṭividyutaḥ
Accusative	ṛṣṭividyutam	ṛṣṭividyutau	ṛṣṭividyutaḥ
Instrumental	ṛṣṭividyutā	ṛṣṭividyudbhyām	ṛṣṭividyudbhiḥ
Dative	ṛṣṭividyute	ṛṣṭividyudbhyām	ṛṣṭividyudbhyaḥ
Ablative	ṛṣṭividyutaḥ	ṛṣṭividyudbhyām	ṛṣṭividyudbhyaḥ
Genitive	ṛṣṭividyutaḥ	ṛṣṭividyutoḥ	ṛṣṭividyutām
Locative	ṛṣṭividyuti	ṛṣṭividyutoḥ	ṛṣṭividyutsu

Compound ṛṣṭividyut -

Adverb -ṛṣṭividyut