Declension table of ?upamanthana

Neuter	Singular	Dual	Plural
Nominative	upamanthanam	upamanthane	upamanthanāni
Vocative	upamanthana	upamanthane	upamanthanāni
Accusative	upamanthanam	upamanthane	upamanthanāni
Instrumental	upamanthanena	upamanthanābhyām	upamanthanaiḥ
Dative	upamanthanāya	upamanthanābhyām	upamanthanebhyaḥ
Ablative	upamanthanāt	upamanthanābhyām	upamanthanebhyaḥ
Genitive	upamanthanasya	upamanthanayoḥ	upamanthanānām
Locative	upamanthane	upamanthanayoḥ	upamanthaneṣu

Compound upamanthana -

Adverb -upamanthanam -upamanthanāt