Declension table of ?maṅgalakārya

Neuter	Singular	Dual	Plural
Nominative	maṅgalakāryam	maṅgalakārye	maṅgalakāryāṇi
Vocative	maṅgalakārya	maṅgalakārye	maṅgalakāryāṇi
Accusative	maṅgalakāryam	maṅgalakārye	maṅgalakāryāṇi
Instrumental	maṅgalakāryeṇa	maṅgalakāryābhyām	maṅgalakāryaiḥ
Dative	maṅgalakāryāya	maṅgalakāryābhyām	maṅgalakāryebhyaḥ
Ablative	maṅgalakāryāt	maṅgalakāryābhyām	maṅgalakāryebhyaḥ
Genitive	maṅgalakāryasya	maṅgalakāryayoḥ	maṅgalakāryāṇām
Locative	maṅgalakārye	maṅgalakāryayoḥ	maṅgalakāryeṣu

Compound maṅgalakārya -

Adverb -maṅgalakāryam -maṅgalakāryāt