Declension table of ?amṛtaśāstra

Neuter	Singular	Dual	Plural
Nominative	amṛtaśāstram	amṛtaśāstre	amṛtaśāstrāṇi
Vocative	amṛtaśāstra	amṛtaśāstre	amṛtaśāstrāṇi
Accusative	amṛtaśāstram	amṛtaśāstre	amṛtaśāstrāṇi
Instrumental	amṛtaśāstreṇa	amṛtaśāstrābhyām	amṛtaśāstraiḥ
Dative	amṛtaśāstrāya	amṛtaśāstrābhyām	amṛtaśāstrebhyaḥ
Ablative	amṛtaśāstrāt	amṛtaśāstrābhyām	amṛtaśāstrebhyaḥ
Genitive	amṛtaśāstrasya	amṛtaśāstrayoḥ	amṛtaśāstrāṇām
Locative	amṛtaśāstre	amṛtaśāstrayoḥ	amṛtaśāstreṣu

Compound amṛtaśāstra -

Adverb -amṛtaśāstram -amṛtaśāstrāt