| Singular | Dual | Plural |
| Nominative |
कठशाठः
kaṭhaśāṭhaḥ
|
कठशाठौ
kaṭhaśāṭhau
|
कठशाठाः
kaṭhaśāṭhāḥ
|
| Vocative |
कठशाठ
kaṭhaśāṭha
|
कठशाठौ
kaṭhaśāṭhau
|
कठशाठाः
kaṭhaśāṭhāḥ
|
| Accusative |
कठशाठम्
kaṭhaśāṭham
|
कठशाठौ
kaṭhaśāṭhau
|
कठशाठान्
kaṭhaśāṭhān
|
| Instrumental |
कठशाठेन
kaṭhaśāṭhena
|
कठशाठाभ्याम्
kaṭhaśāṭhābhyām
|
कठशाठैः
kaṭhaśāṭhaiḥ
|
| Dative |
कठशाठाय
kaṭhaśāṭhāya
|
कठशाठाभ्याम्
kaṭhaśāṭhābhyām
|
कठशाठेभ्यः
kaṭhaśāṭhebhyaḥ
|
| Ablative |
कठशाठात्
kaṭhaśāṭhāt
|
कठशाठाभ्याम्
kaṭhaśāṭhābhyām
|
कठशाठेभ्यः
kaṭhaśāṭhebhyaḥ
|
| Genitive |
कठशाठस्य
kaṭhaśāṭhasya
|
कठशाठयोः
kaṭhaśāṭhayoḥ
|
कठशाठानाम्
kaṭhaśāṭhānām
|
| Locative |
कठशाठे
kaṭhaśāṭhe
|
कठशाठयोः
kaṭhaśāṭhayoḥ
|
कठशाठेषु
kaṭhaśāṭheṣu
|