Big publication houses earn huge profit by using paywalls for the access of articles by exploiting the copyright laws. On the other hand, the paywalls significantly deprive the researchers from countries with poor resources from accessing the latest research articles. The articles are written by the authors for the dissemination of knowledge and progress of science overall for the advancement of current knowledge. More readers also potentially mean more citations. Why can not the access to knowledge be free (or affordable) for all?