Location-based and Location-aware Services and systems are an integral part of a modern era of smartphones, faster internet, and all time connectivity. The usage of location awareness of a user and to accordingly provide him the necessary services is the core of the services based on mobile and desktop applications. In the push model, subscribers register spatio-textual subscriptions to catch their interests, and publishers post spatio-textual information or messages. This requires the location aware publishing of relevant notification and messages to the user. Such location aware publish services can be user initiated where a user types certain keywords to search for certain things around his area or can be server-initiated push model, where the messages and notifications are pushed directly by a server based on location and interest of users. In this research work, a novel searching algorithm based on binary search tree method has been proposed for location-aware server initiated model. To showcase the idea a small web application has been developed which asks users to allow location access and based on that the relevant shopping offers are displayed to the user. This helps the retail shops to regularly update their offers to attract more customers increasing their footfall and sales.