Declension table of ?śāstṛka

Neuter	Singular	Dual	Plural
Nominative	śāstṛkam	śāstṛke	śāstṛkāṇi
Vocative	śāstṛka	śāstṛke	śāstṛkāṇi
Accusative	śāstṛkam	śāstṛke	śāstṛkāṇi
Instrumental	śāstṛkeṇa	śāstṛkābhyām	śāstṛkaiḥ
Dative	śāstṛkāya	śāstṛkābhyām	śāstṛkebhyaḥ
Ablative	śāstṛkāt	śāstṛkābhyām	śāstṛkebhyaḥ
Genitive	śāstṛkasya	śāstṛkayoḥ	śāstṛkāṇām
Locative	śāstṛke	śāstṛkayoḥ	śāstṛkeṣu

Compound śāstṛka -

Adverb -śāstṛkam -śāstṛkāt