Declension table of ?upottara

Neuter	Singular	Dual	Plural
Nominative	upottaram	upottare	upottarāṇi
Vocative	upottara	upottare	upottarāṇi
Accusative	upottaram	upottare	upottarāṇi
Instrumental	upottareṇa	upottarābhyām	upottaraiḥ
Dative	upottarāya	upottarābhyām	upottarebhyaḥ
Ablative	upottarāt	upottarābhyām	upottarebhyaḥ
Genitive	upottarasya	upottarayoḥ	upottarāṇām
Locative	upottare	upottarayoḥ	upottareṣu

Compound upottara -

Adverb -upottaram -upottarāt