Two books have come out within a year pointing to a serious problem common to India and Pakistan.
Before describing the books let us note that we are now talking about what is common between India and Pakistan. This makes a lot more sense than debating whether Indians and Pakistanis are similar. Indians and Pakistanis have so many differences within their own communities that it is futile to try and reduce them to a single dimension that can then be compared. To take a very simple illustration: there are secular Indians and communal Indians just as there are secular Pakistanis and communal Pakistanis. There is no one type of Indian or Pakistani.