Declension table of ?padaśāstra

Neuter	Singular	Dual	Plural
Nominative	padaśāstram	padaśāstre	padaśāstrāṇi
Vocative	padaśāstra	padaśāstre	padaśāstrāṇi
Accusative	padaśāstram	padaśāstre	padaśāstrāṇi
Instrumental	padaśāstreṇa	padaśāstrābhyām	padaśāstraiḥ
Dative	padaśāstrāya	padaśāstrābhyām	padaśāstrebhyaḥ
Ablative	padaśāstrāt	padaśāstrābhyām	padaśāstrebhyaḥ
Genitive	padaśāstrasya	padaśāstrayoḥ	padaśāstrāṇām
Locative	padaśāstre	padaśāstrayoḥ	padaśāstreṣu

Compound padaśāstra -

Adverb -padaśāstram -padaśāstrāt