Declension table of ?tadanvaya

Masculine	Singular	Dual	Plural
Nominative	tadanvayaḥ	tadanvayau	tadanvayāḥ
Vocative	tadanvaya	tadanvayau	tadanvayāḥ
Accusative	tadanvayam	tadanvayau	tadanvayān
Instrumental	tadanvayena	tadanvayābhyām	tadanvayaiḥ tadanvayebhiḥ
Dative	tadanvayāya	tadanvayābhyām	tadanvayebhyaḥ
Ablative	tadanvayāt	tadanvayābhyām	tadanvayebhyaḥ
Genitive	tadanvayasya	tadanvayayoḥ	tadanvayānām
Locative	tadanvaye	tadanvayayoḥ	tadanvayeṣu

Compound tadanvaya -

Adverb -tadanvayam -tadanvayāt