Declension table of ?avidhya

Neuter	Singular	Dual	Plural
Nominative	avidhyam	avidhye	avidhyāni
Vocative	avidhya	avidhye	avidhyāni
Accusative	avidhyam	avidhye	avidhyāni
Instrumental	avidhyena	avidhyābhyām	avidhyaiḥ
Dative	avidhyāya	avidhyābhyām	avidhyebhyaḥ
Ablative	avidhyāt	avidhyābhyām	avidhyebhyaḥ
Genitive	avidhyasya	avidhyayoḥ	avidhyānām
Locative	avidhye	avidhyayoḥ	avidhyeṣu

Compound avidhya -

Adverb -avidhyam -avidhyāt