Declension table of siddhiprāya

Masculine	Singular	Dual	Plural
Nominative	siddhiprāyaḥ	siddhiprāyau	siddhiprāyāḥ
Vocative	siddhiprāya	siddhiprāyau	siddhiprāyāḥ
Accusative	siddhiprāyam	siddhiprāyau	siddhiprāyān
Instrumental	siddhiprāyeṇa	siddhiprāyābhyām	siddhiprāyaiḥ siddhiprāyebhiḥ
Dative	siddhiprāyāya	siddhiprāyābhyām	siddhiprāyebhyaḥ
Ablative	siddhiprāyāt	siddhiprāyābhyām	siddhiprāyebhyaḥ
Genitive	siddhiprāyasya	siddhiprāyayoḥ	siddhiprāyāṇām
Locative	siddhiprāye	siddhiprāyayoḥ	siddhiprāyeṣu

Compound siddhiprāya -

Adverb -siddhiprāyam -siddhiprāyāt