Declension table of udra

Masculine	Singular	Dual	Plural
Nominative	udraḥ	udrau	udrāḥ
Vocative	udra	udrau	udrāḥ
Accusative	udram	udrau	udrān
Instrumental	udreṇa	udrābhyām	udraiḥ udrebhiḥ
Dative	udrāya	udrābhyām	udrebhyaḥ
Ablative	udrāt	udrābhyām	udrebhyaḥ
Genitive	udrasya	udrayoḥ	udrāṇām
Locative	udre	udrayoḥ	udreṣu

Compound udra -

Adverb -udram -udrāt