Hi Rakesh,
Support for Windows 8 store applications and Windows Phone 8 applications is now available in SQL Anywhere 16.0.0.1716 and up. See CR #750618: http://search.sybase.com/kbx/changerequests?bug_id=750618
Service Packs with this support have been requested and will be released as they are ready.
Regards,
Jeff Albion
SAP Active Global Support