Abstract: Collaborative social event planning and execution is disclosed. The embodiments herein relate to event planning and, more particularly, to collaborative event planning. In existing event planning schemes do not satisfy the requirements of users as there are no means to personalize the planning to suite the requirements of the user. They have a predefined template for each event and anything other than the template cannot be implemented. The collaborative social event planning mechanism provides a mechanism wherein users may plan any kind of event as per his choice. The method allows flexible planning environment to create event plans, create templates to suit user's requirement and also share it with others. The content and templates are community generated. Also, allows for multi-device mobile access. There is dynamic collaboration among event managers and collaborator teams. In addition, the method provides a unique monetization model and facilitates sponsors, advertisers to display their content.