Hi @arindam6600
Please use the below snippet of code. First, you would have to create the page manager object and with that you can get the Page object by passing the page path. Once it's done, create the valuemap object and get the properties of the page.
PageManager pm = resource.getResourceResolver().adaptTo(PageManager.class);
Page containingPage = pm.getContainingPage(resourceResolver.getResource(pagePath));
ValueMap pageProperties = containingPage.getProperties();
String prop= pageProperties.get("prop1", String.class);
Hope this helps.