Declension table of ?nirgarha

Neuter	Singular	Dual	Plural
Nominative	nirgarham	nirgarhe	nirgarhāṇi
Vocative	nirgarha	nirgarhe	nirgarhāṇi
Accusative	nirgarham	nirgarhe	nirgarhāṇi
Instrumental	nirgarheṇa	nirgarhābhyām	nirgarhaiḥ
Dative	nirgarhāya	nirgarhābhyām	nirgarhebhyaḥ
Ablative	nirgarhāt	nirgarhābhyām	nirgarhebhyaḥ
Genitive	nirgarhasya	nirgarhayoḥ	nirgarhāṇām
Locative	nirgarhe	nirgarhayoḥ	nirgarheṣu

Compound nirgarha -

Adverb -nirgarham -nirgarhāt