| Singular | Dual | Plural | |
| Nominative |
जहाकः
jahākaḥ |
जहाकौ
jahākau |
जहाकाः
jahākāḥ |
| Vocative |
जहाक
jahāka |
जहाकौ
jahākau |
जहाकाः
jahākāḥ |
| Accusative |
जहाकम्
jahākam |
जहाकौ
jahākau |
जहाकान्
jahākān |
| Instrumental |
जहाकेन
jahākena |
जहाकाभ्याम्
jahākābhyām |
जहाकैः
jahākaiḥ |
| Dative |
जहाकाय
jahākāya |
जहाकाभ्याम्
jahākābhyām |
जहाकेभ्यः
jahākebhyaḥ |
| Ablative |
जहाकात्
jahākāt |
जहाकाभ्याम्
jahākābhyām |
जहाकेभ्यः
jahākebhyaḥ |
| Genitive |
जहाकस्य
jahākasya |
जहाकयोः
jahākayoḥ |
जहाकानाम्
jahākānām |
| Locative |
जहाके
jahāke |
जहाकयोः
jahākayoḥ |
जहाकेषु
jahākeṣu |