Declension table of ?jyotiṣka

Neuter	Singular	Dual	Plural
Nominative	jyotiṣkam	jyotiṣke	jyotiṣkāṇi
Vocative	jyotiṣka	jyotiṣke	jyotiṣkāṇi
Accusative	jyotiṣkam	jyotiṣke	jyotiṣkāṇi
Instrumental	jyotiṣkeṇa	jyotiṣkābhyām	jyotiṣkaiḥ
Dative	jyotiṣkāya	jyotiṣkābhyām	jyotiṣkebhyaḥ
Ablative	jyotiṣkāt	jyotiṣkābhyām	jyotiṣkebhyaḥ
Genitive	jyotiṣkasya	jyotiṣkayoḥ	jyotiṣkāṇām
Locative	jyotiṣke	jyotiṣkayoḥ	jyotiṣkeṣu

Compound jyotiṣka -

Adverb -jyotiṣkam -jyotiṣkāt