I don't think this phenomenon is specific to India, but a culture of strongly encouraging rote memorisation over actual thinking is definitely a factor. I worked in CS education many years ago (not in India) but the decline was already quite visible then, in the form of students who could recite obscure facts and copy-paste code together but were otherwise mostly computer-illiterate. These people then think they are successful and try to teach others, leading to a case of "the blind leading the blind".