Declension table of ?kauravyāyaṇīputra

Masculine	Singular	Dual	Plural
Nominative	kauravyāyaṇīputraḥ	kauravyāyaṇīputrau	kauravyāyaṇīputrāḥ
Vocative	kauravyāyaṇīputra	kauravyāyaṇīputrau	kauravyāyaṇīputrāḥ
Accusative	kauravyāyaṇīputram	kauravyāyaṇīputrau	kauravyāyaṇīputrān
Instrumental	kauravyāyaṇīputreṇa	kauravyāyaṇīputrābhyām	kauravyāyaṇīputraiḥ kauravyāyaṇīputrebhiḥ
Dative	kauravyāyaṇīputrāya	kauravyāyaṇīputrābhyām	kauravyāyaṇīputrebhyaḥ
Ablative	kauravyāyaṇīputrāt	kauravyāyaṇīputrābhyām	kauravyāyaṇīputrebhyaḥ
Genitive	kauravyāyaṇīputrasya	kauravyāyaṇīputrayoḥ	kauravyāyaṇīputrāṇām
Locative	kauravyāyaṇīputre	kauravyāyaṇīputrayoḥ	kauravyāyaṇīputreṣu

Compound kauravyāyaṇīputra -

Adverb -kauravyāyaṇīputram -kauravyāyaṇīputrāt