Declension table of ?ṛgvidhāna

Neuter	Singular	Dual	Plural
Nominative	ṛgvidhānam	ṛgvidhāne	ṛgvidhānāni
Vocative	ṛgvidhāna	ṛgvidhāne	ṛgvidhānāni
Accusative	ṛgvidhānam	ṛgvidhāne	ṛgvidhānāni
Instrumental	ṛgvidhānena	ṛgvidhānābhyām	ṛgvidhānaiḥ
Dative	ṛgvidhānāya	ṛgvidhānābhyām	ṛgvidhānebhyaḥ
Ablative	ṛgvidhānāt	ṛgvidhānābhyām	ṛgvidhānebhyaḥ
Genitive	ṛgvidhānasya	ṛgvidhānayoḥ	ṛgvidhānānām
Locative	ṛgvidhāne	ṛgvidhānayoḥ	ṛgvidhāneṣu

Compound ṛgvidhāna -

Adverb -ṛgvidhānam -ṛgvidhānāt