Declension table of ?maṅgalārambha

Masculine	Singular	Dual	Plural
Nominative	maṅgalārambhaḥ	maṅgalārambhau	maṅgalārambhāḥ
Vocative	maṅgalārambha	maṅgalārambhau	maṅgalārambhāḥ
Accusative	maṅgalārambham	maṅgalārambhau	maṅgalārambhān
Instrumental	maṅgalārambheṇa	maṅgalārambhābhyām	maṅgalārambhaiḥ maṅgalārambhebhiḥ
Dative	maṅgalārambhāya	maṅgalārambhābhyām	maṅgalārambhebhyaḥ
Ablative	maṅgalārambhāt	maṅgalārambhābhyām	maṅgalārambhebhyaḥ
Genitive	maṅgalārambhasya	maṅgalārambhayoḥ	maṅgalārambhāṇām
Locative	maṅgalārambhe	maṅgalārambhayoḥ	maṅgalārambheṣu

Compound maṅgalārambha -

Adverb -maṅgalārambham -maṅgalārambhāt