Declension table of ?siddhaputra

Masculine	Singular	Dual	Plural
Nominative	siddhaputraḥ	siddhaputrau	siddhaputrāḥ
Vocative	siddhaputra	siddhaputrau	siddhaputrāḥ
Accusative	siddhaputram	siddhaputrau	siddhaputrān
Instrumental	siddhaputreṇa	siddhaputrābhyām	siddhaputraiḥ siddhaputrebhiḥ
Dative	siddhaputrāya	siddhaputrābhyām	siddhaputrebhyaḥ
Ablative	siddhaputrāt	siddhaputrābhyām	siddhaputrebhyaḥ
Genitive	siddhaputrasya	siddhaputrayoḥ	siddhaputrāṇām
Locative	siddhaputre	siddhaputrayoḥ	siddhaputreṣu

Compound siddhaputra -

Adverb -siddhaputram -siddhaputrāt