Declension table of janaka

Masculine	Singular	Dual	Plural
Nominative	janakaḥ	janakau	janakāḥ
Vocative	janaka	janakau	janakāḥ
Accusative	janakam	janakau	janakān
Instrumental	janakena	janakābhyām	janakaiḥ janakebhiḥ
Dative	janakāya	janakābhyām	janakebhyaḥ
Ablative	janakāt	janakābhyām	janakebhyaḥ
Genitive	janakasya	janakayoḥ	janakānām
Locative	janake	janakayoḥ	janakeṣu

Compound janaka -

Adverb -janakam -janakāt