How to validate a model from router, where models are underneth a component?

[3gwebtrain]

my page looks like this:

<div class="balanceEmi rdc-scroll-content has-subheader rdc-view">
	{{cs2i-select-tenure selectedCreditCard=model}} //component where models nested in form
</div>

<div class="rdc-view___footer rdc-view___footer---stickey">
	{{rdc-button default="CANCEL" type="secondary" action="redirect"}}
	{{#if enableNext}}
		{{rdc-button default="NEXT" type="primary" action="goToNext"}}
	{{else}}
			{{rdc-button default="NEXT" type="primary" disabled="true"}}
	{{/if}} 
	<div class="formValidateBeforeNextBtn" {{action 'formValidateBeforeNext'}}>//action in router
		<!-- empty for validation button--> //on click how to validate component model?
	</div>
</div>

in my page, when next button triggered, how to i validate the component fields in router?