Is there a way to pass selected date from date_popup to another view in URL?
Definitely. When you expose a filter, it listens for a specific $_GET ID in the URL. This ID can be set by expanding the "More" settings of the particular filter item and entering/modifying the string in the "Filter identifier" field.

In your case, you'd copy the first View's filter identifier and paste it into the second View's filter identifier, thus allowing both of them to use the same item in the URL.