Declension table of vatsa

Masculine	Singular	Dual	Plural
Nominative	vatsaḥ	vatsau	vatsāḥ
Vocative	vatsa	vatsau	vatsāḥ
Accusative	vatsam	vatsau	vatsān
Instrumental	vatsena	vatsābhyām	vatsaiḥ vatsebhiḥ
Dative	vatsāya	vatsābhyām	vatsebhyaḥ
Ablative	vatsāt	vatsābhyām	vatsebhyaḥ
Genitive	vatsasya	vatsayoḥ	vatsānām
Locative	vatse	vatsayoḥ	vatseṣu

Compound vatsa -

Adverb -vatsam -vatsāt