Declension table of ?upāttaśastra

Neuter	Singular	Dual	Plural
Nominative	upāttaśastram	upāttaśastre	upāttaśastrāṇi
Vocative	upāttaśastra	upāttaśastre	upāttaśastrāṇi
Accusative	upāttaśastram	upāttaśastre	upāttaśastrāṇi
Instrumental	upāttaśastreṇa	upāttaśastrābhyām	upāttaśastraiḥ
Dative	upāttaśastrāya	upāttaśastrābhyām	upāttaśastrebhyaḥ
Ablative	upāttaśastrāt	upāttaśastrābhyām	upāttaśastrebhyaḥ
Genitive	upāttaśastrasya	upāttaśastrayoḥ	upāttaśastrāṇām
Locative	upāttaśastre	upāttaśastrayoḥ	upāttaśastreṣu

Compound upāttaśastra -

Adverb -upāttaśastram -upāttaśastrāt