Declension table of ?dharmasevana

Neuter	Singular	Dual	Plural
Nominative	dharmasevanam	dharmasevane	dharmasevanāni
Vocative	dharmasevana	dharmasevane	dharmasevanāni
Accusative	dharmasevanam	dharmasevane	dharmasevanāni
Instrumental	dharmasevanena	dharmasevanābhyām	dharmasevanaiḥ
Dative	dharmasevanāya	dharmasevanābhyām	dharmasevanebhyaḥ
Ablative	dharmasevanāt	dharmasevanābhyām	dharmasevanebhyaḥ
Genitive	dharmasevanasya	dharmasevanayoḥ	dharmasevanānām
Locative	dharmasevane	dharmasevanayoḥ	dharmasevaneṣu

Compound dharmasevana -

Adverb -dharmasevanam -dharmasevanāt