Hey guys, let’s review about one of the most important and awaited topic of youth.which is study and coaching class or coaching centres.today the source of my review is appin technology in delhi and my topic is lack of knowledge.as my topic says each and everything that this coaching center has lack of knowledge means the teachers are knowledgable but knowledge is waste till they know to express.so here u can’t gain the knowledge and the another reason is that no proper faculty and study materials are available.so guys in my opinion its not a right class to choose.thank u readers