Declension table of ?nirmanthya

Neuter	Singular	Dual	Plural
Nominative	nirmanthyam	nirmanthye	nirmanthyāni
Vocative	nirmanthya	nirmanthye	nirmanthyāni
Accusative	nirmanthyam	nirmanthye	nirmanthyāni
Instrumental	nirmanthyena	nirmanthyābhyām	nirmanthyaiḥ
Dative	nirmanthyāya	nirmanthyābhyām	nirmanthyebhyaḥ
Ablative	nirmanthyāt	nirmanthyābhyām	nirmanthyebhyaḥ
Genitive	nirmanthyasya	nirmanthyayoḥ	nirmanthyānām
Locative	nirmanthye	nirmanthyayoḥ	nirmanthyeṣu

Compound nirmanthya -

Adverb -nirmanthyam -nirmanthyāt