Declension table of ?śāstṛka

Masculine	Singular	Dual	Plural
Nominative	śāstṛkaḥ	śāstṛkau	śāstṛkāḥ
Vocative	śāstṛka	śāstṛkau	śāstṛkāḥ
Accusative	śāstṛkam	śāstṛkau	śāstṛkān
Instrumental	śāstṛkeṇa	śāstṛkābhyām	śāstṛkaiḥ śāstṛkebhiḥ
Dative	śāstṛkāya	śāstṛkābhyām	śāstṛkebhyaḥ
Ablative	śāstṛkāt	śāstṛkābhyām	śāstṛkebhyaḥ
Genitive	śāstṛkasya	śāstṛkayoḥ	śāstṛkāṇām
Locative	śāstṛke	śāstṛkayoḥ	śāstṛkeṣu

Compound śāstṛka -

Adverb -śāstṛkam -śāstṛkāt