Declension table of dharmakartṛ

Masculine	Singular	Dual	Plural
Nominative	dharmakartā	dharmakartārau	dharmakartāraḥ
Vocative	dharmakartaḥ	dharmakartārau	dharmakartāraḥ
Accusative	dharmakartāram	dharmakartārau	dharmakartṝn
Instrumental	dharmakartrā	dharmakartṛbhyām	dharmakartṛbhiḥ
Dative	dharmakartre	dharmakartṛbhyām	dharmakartṛbhyaḥ
Ablative	dharmakartuḥ	dharmakartṛbhyām	dharmakartṛbhyaḥ
Genitive	dharmakartuḥ	dharmakartroḥ	dharmakartṝṇām
Locative	dharmakartari	dharmakartroḥ	dharmakartṛṣu

Compound dharmakartṛ -

Adverb -dharmakartṛ