Declension table of vivaktṛ

Masculine	Singular	Dual	Plural
Nominative	vivaktā	vivaktārau	vivaktāraḥ
Vocative	vivaktaḥ	vivaktārau	vivaktāraḥ
Accusative	vivaktāram	vivaktārau	vivaktṝn
Instrumental	vivaktrā	vivaktṛbhyām	vivaktṛbhiḥ
Dative	vivaktre	vivaktṛbhyām	vivaktṛbhyaḥ
Ablative	vivaktuḥ	vivaktṛbhyām	vivaktṛbhyaḥ
Genitive	vivaktuḥ	vivaktroḥ	vivaktṝṇām
Locative	vivaktari	vivaktroḥ	vivaktṛṣu

Compound vivaktṛ -

Adverb -vivaktṛ