Declension table of ?vidhya

Masculine	Singular	Dual	Plural
Nominative	vidhyaḥ	vidhyau	vidhyāḥ
Vocative	vidhya	vidhyau	vidhyāḥ
Accusative	vidhyam	vidhyau	vidhyān
Instrumental	vidhyena	vidhyābhyām	vidhyaiḥ vidhyebhiḥ
Dative	vidhyāya	vidhyābhyām	vidhyebhyaḥ
Ablative	vidhyāt	vidhyābhyām	vidhyebhyaḥ
Genitive	vidhyasya	vidhyayoḥ	vidhyānām
Locative	vidhye	vidhyayoḥ	vidhyeṣu

Compound vidhya -

Adverb -vidhyam -vidhyāt