Declension table of ?viśvakartṛ

Masculine	Singular	Dual	Plural
Nominative	viśvakartā	viśvakartārau	viśvakartāraḥ
Vocative	viśvakartaḥ	viśvakartārau	viśvakartāraḥ
Accusative	viśvakartāram	viśvakartārau	viśvakartṝn
Instrumental	viśvakartrā	viśvakartṛbhyām	viśvakartṛbhiḥ
Dative	viśvakartre	viśvakartṛbhyām	viśvakartṛbhyaḥ
Ablative	viśvakartuḥ	viśvakartṛbhyām	viśvakartṛbhyaḥ
Genitive	viśvakartuḥ	viśvakartroḥ	viśvakartṝṇām
Locative	viśvakartari	viśvakartroḥ	viśvakartṛṣu

Compound viśvakartṛ -

Adverb -viśvakartṛ