Declension table of ?avidhāna

Neuter	Singular	Dual	Plural
Nominative	avidhānam	avidhāne	avidhānāni
Vocative	avidhāna	avidhāne	avidhānāni
Accusative	avidhānam	avidhāne	avidhānāni
Instrumental	avidhānena	avidhānābhyām	avidhānaiḥ
Dative	avidhānāya	avidhānābhyām	avidhānebhyaḥ
Ablative	avidhānāt	avidhānābhyām	avidhānebhyaḥ
Genitive	avidhānasya	avidhānayoḥ	avidhānānām
Locative	avidhāne	avidhānayoḥ	avidhāneṣu

Compound avidhāna -

Adverb -avidhānam -avidhānāt