Hi @RAKESH_KUMAR_Tiwari ,
Alternatively using a Type Into Activity with Simulate Input mode should also work. Check below the Selector of the Type Into Activity that is to be used :
<webctrl aaname='Hire Date' parentid='form_container' tag='LABEL' />
<nav up='1' />
<webctrl tag='INPUT' type='text' class='datepicker' parentclass='datepicker_div' />

Let us know if you are still facing issues.