Declension table of ?prasādasumukha

Neuter	Singular	Dual	Plural
Nominative	prasādasumukham	prasādasumukhe	prasādasumukhāni
Vocative	prasādasumukha	prasādasumukhe	prasādasumukhāni
Accusative	prasādasumukham	prasādasumukhe	prasādasumukhāni
Instrumental	prasādasumukhena	prasādasumukhābhyām	prasādasumukhaiḥ
Dative	prasādasumukhāya	prasādasumukhābhyām	prasādasumukhebhyaḥ
Ablative	prasādasumukhāt	prasādasumukhābhyām	prasādasumukhebhyaḥ
Genitive	prasādasumukhasya	prasādasumukhayoḥ	prasādasumukhānām
Locative	prasādasumukhe	prasādasumukhayoḥ	prasādasumukheṣu

Compound prasādasumukha -

Adverb -prasādasumukham -prasādasumukhāt