Declension table of ?upāttaśastra

Masculine	Singular	Dual	Plural
Nominative	upāttaśastraḥ	upāttaśastrau	upāttaśastrāḥ
Vocative	upāttaśastra	upāttaśastrau	upāttaśastrāḥ
Accusative	upāttaśastram	upāttaśastrau	upāttaśastrān
Instrumental	upāttaśastreṇa	upāttaśastrābhyām	upāttaśastraiḥ upāttaśastrebhiḥ
Dative	upāttaśastrāya	upāttaśastrābhyām	upāttaśastrebhyaḥ
Ablative	upāttaśastrāt	upāttaśastrābhyām	upāttaśastrebhyaḥ
Genitive	upāttaśastrasya	upāttaśastrayoḥ	upāttaśastrāṇām
Locative	upāttaśastre	upāttaśastrayoḥ	upāttaśastreṣu

Compound upāttaśastra -

Adverb -upāttaśastram -upāttaśastrāt