Declension table of ?harṣakara

Masculine	Singular	Dual	Plural
Nominative	harṣakaraḥ	harṣakarau	harṣakarāḥ
Vocative	harṣakara	harṣakarau	harṣakarāḥ
Accusative	harṣakaram	harṣakarau	harṣakarān
Instrumental	harṣakareṇa	harṣakarābhyām	harṣakaraiḥ harṣakarebhiḥ
Dative	harṣakarāya	harṣakarābhyām	harṣakarebhyaḥ
Ablative	harṣakarāt	harṣakarābhyām	harṣakarebhyaḥ
Genitive	harṣakarasya	harṣakarayoḥ	harṣakarāṇām
Locative	harṣakare	harṣakarayoḥ	harṣakareṣu

Compound harṣakara -

Adverb -harṣakaram -harṣakarāt