| Singular | Dual | Plural |
| Nominativo |
कठोरहृदयम्
kaṭhorahṛdayam
|
कठोरहृदये
kaṭhorahṛdaye
|
कठोरहृदयानि
kaṭhorahṛdayāni
|
| Vocativo |
कठोरहृदय
kaṭhorahṛdaya
|
कठोरहृदये
kaṭhorahṛdaye
|
कठोरहृदयानि
kaṭhorahṛdayāni
|
| Acusativo |
कठोरहृदयम्
kaṭhorahṛdayam
|
कठोरहृदये
kaṭhorahṛdaye
|
कठोरहृदयानि
kaṭhorahṛdayāni
|
| Instrumental |
कठोरहृदयेन
kaṭhorahṛdayena
|
कठोरहृदयाभ्याम्
kaṭhorahṛdayābhyām
|
कठोरहृदयैः
kaṭhorahṛdayaiḥ
|
| Dativo |
कठोरहृदयाय
kaṭhorahṛdayāya
|
कठोरहृदयाभ्याम्
kaṭhorahṛdayābhyām
|
कठोरहृदयेभ्यः
kaṭhorahṛdayebhyaḥ
|
| Ablativo |
कठोरहृदयात्
kaṭhorahṛdayāt
|
कठोरहृदयाभ्याम्
kaṭhorahṛdayābhyām
|
कठोरहृदयेभ्यः
kaṭhorahṛdayebhyaḥ
|
| Genitivo |
कठोरहृदयस्य
kaṭhorahṛdayasya
|
कठोरहृदययोः
kaṭhorahṛdayayoḥ
|
कठोरहृदयानाम्
kaṭhorahṛdayānām
|
| Locativo |
कठोरहृदये
kaṭhorahṛdaye
|
कठोरहृदययोः
kaṭhorahṛdayayoḥ
|
कठोरहृदयेषु
kaṭhorahṛdayeṣu
|