Declension table of ?kartapatya

Neuter	Singular	Dual	Plural
Nominative	kartapatyam	kartapatye	kartapatyāni
Vocative	kartapatya	kartapatye	kartapatyāni
Accusative	kartapatyam	kartapatye	kartapatyāni
Instrumental	kartapatyena	kartapatyābhyām	kartapatyaiḥ
Dative	kartapatyāya	kartapatyābhyām	kartapatyebhyaḥ
Ablative	kartapatyāt	kartapatyābhyām	kartapatyebhyaḥ
Genitive	kartapatyasya	kartapatyayoḥ	kartapatyānām
Locative	kartapatye	kartapatyayoḥ	kartapatyeṣu

Compound kartapatya -

Adverb -kartapatyam -kartapatyāt