1. A method for monitoring a worker performing a crowdsourced task being presented on a computing device, the method comprising: performing, by one or more processors in the computing device, at least one of a facial detection processing or an eye tracking processing, on a video stream captured by a camera of the computing device; determining, by the one or more processors, an inattention instance of the worker, based on at least one of the facial detection processing or the eye tracking processing; communicating, by the one or more processors, the determined inattention instance to a crowdsourcing platform to receive an instruction from the crowdsourcing platform for suspension of the crowdsourced task being presented on the computing device, wherein the crowdsourced task is received from the crowdsourcing platform; and communicating, by the one or more processors, one or more responses to the crowdsourcing platform within a predetermined time interval for one or more sample tasks received from the crowdsourcing platform in an event of the suspension of the crowdsourced task, wherein a performance score of the worker is updated by the crowdsourcing platform based on a count of inattention instances and validation of the one or more responses provided by the worker.