Custom Post types not visible in new post “post-type” dropdown

I would like to create a front-end form that captures all the ACF groups and save them in a custom post type. But the custom post type I created is not visible in the “post type” dropdown for a new post. Is there any way to resolve this? When i saw the WPTuts video, in there it was seen that custom post types can be selected for a “new post” action.