Declension table of ?tvādatta

Masculine	Singular	Dual	Plural
Nominative	tvādattaḥ	tvādattau	tvādattāḥ
Vocative	tvādatta	tvādattau	tvādattāḥ
Accusative	tvādattam	tvādattau	tvādattān
Instrumental	tvādattena	tvādattābhyām	tvādattaiḥ tvādattebhiḥ
Dative	tvādattāya	tvādattābhyām	tvādattebhyaḥ
Ablative	tvādattāt	tvādattābhyām	tvādattebhyaḥ
Genitive	tvādattasya	tvādattayoḥ	tvādattānām
Locative	tvādatte	tvādattayoḥ	tvādatteṣu

Compound tvādatta -

Adverb -tvādattam -tvādattāt