Declension table of ?mṛtaputra

Masculine	Singular	Dual	Plural
Nominative	mṛtaputraḥ	mṛtaputrau	mṛtaputrāḥ
Vocative	mṛtaputra	mṛtaputrau	mṛtaputrāḥ
Accusative	mṛtaputram	mṛtaputrau	mṛtaputrān
Instrumental	mṛtaputreṇa	mṛtaputrābhyām	mṛtaputraiḥ mṛtaputrebhiḥ
Dative	mṛtaputrāya	mṛtaputrābhyām	mṛtaputrebhyaḥ
Ablative	mṛtaputrāt	mṛtaputrābhyām	mṛtaputrebhyaḥ
Genitive	mṛtaputrasya	mṛtaputrayoḥ	mṛtaputrāṇām
Locative	mṛtaputre	mṛtaputrayoḥ	mṛtaputreṣu

Compound mṛtaputra -

Adverb -mṛtaputram -mṛtaputrāt