Declension table of nirupāya

Neuter	Singular	Dual	Plural
Nominative	nirupāyam	nirupāye	nirupāyāṇi
Vocative	nirupāya	nirupāye	nirupāyāṇi
Accusative	nirupāyam	nirupāye	nirupāyāṇi
Instrumental	nirupāyeṇa	nirupāyābhyām	nirupāyaiḥ
Dative	nirupāyāya	nirupāyābhyām	nirupāyebhyaḥ
Ablative	nirupāyāt	nirupāyābhyām	nirupāyebhyaḥ
Genitive	nirupāyasya	nirupāyayoḥ	nirupāyāṇām
Locative	nirupāye	nirupāyayoḥ	nirupāyeṣu

Compound nirupāya -

Adverb -nirupāyam -nirupāyāt