Well, writer has invested pretty good efforts, in researching and putting together facts. But alas ! he has seen everything through pakistani lenses.
The root of all problem is, Pakistan think everything according to religion. Its claim over Kashmir is solely on one thing, religion. They should get it clearly that even if Pakistan was created for muslims, India was not created for Hindus only, so they can not take every muslim majority state, only because they were created for muslims, India is a secular country, so It has every reason to merge/accede any religious majority state (including muslim because it is also for muslims) but pakistan can not merge other states which are not muslims. The peace in south asia depends only and only upon Pakistan. It has nothing to do for that purpose, only has to forget about its false claims based on religion.(take it for sure, religion, specially islam, can never be a logic for creation of a state, no matter what has been written in your books). India has never interfered into internal matters of Pakistan except a tit for tat reply. and giving kashmir on the base of its religion is not a solution. Because many parts of india are muslim majority and christian majority, the logic of giving them out only arise when india will say that it is not a country for their religion.
YE AESA HI HAI KI JAIBI BHAI AAKAR MERE DARWaJE KE SAMNE SHOR MACHANE LAG JAYE KI JAB TAK MAI UNKO APNE GHAR ME SE KUCHH HISSA NAHI DE DUNGA TAB TAK JHAGRA JARI RAHEGA. AB MAI KYA KAR SAKTA HU ? YA TO HISSA DE DU, ( FIR TO DHEERE DHEERE WO EK AADH MAHINE ME AAKAR SHOR MACHANE LAGENGE AUR EK DIN WO PURA GHAR UNKA HO JAYEGA, YA KI MAI UNKO PAHLI BAAR HI SAKHTI KE SATH MANAA KAR DU.
India has taken the second option, denying it first time.