You can see example here: https://github.com/anspress/anspress/blob/master/includes/user-fields.php#L46 You can use ap_user_fields filter to add custom fields from your theme functions.php
Rahul, do u recommend to use SEO Framework plugin or anything else?
I am using Add Meta Tags plugin to achieve that. http://stefantsov.com/add-post-meta-to-anspress-with-add-meta-tags-plugin/
That’s because you’re not using SEO Framework which the author has specially tailored to work with AskBug/AnsPress.
AskBug 1.6 is available. AskBug 1.6 here keeps wanting to update itself to 1.6 for some reason.