Disclosed is a method and a user device for real time processing of rating associated to one or more telecommunication services. The user device comprises a personalized product catalogue module for receiving a personalized product catalogue comprising one or more telecommunication services. The personalized product catalogue further comprises a plurality of rules associated with rating of each of the one or more telecommunication services. The user device further may comprise a monitoring module for monitoring an event triggered for establishing a communication. The user device may further capture service consumption data pertaining to the appropriate telecommunication service being consumed for the processing of the event. The user device may further rate the event based on the service consumption data and at least one rule, of the plurality of rules, stored in the personalized product catalogue corresponding to the appropriate service.