Edited sentence: As a result,the Muslim majority was quickly exterminated by way of migration,butchery at the hands of the Hindus and Sikhs,and mass conversions.Damning the rivers,by India,would mean stifling Pakistani economy.Even though the small Indian states also needed the waters,not only was Pakistan much bigger,but the then-present Muslim majority should have influenced the outcome in Pakistan's favour.Firstly,it was against the original plan as all Muslim majority districts near Pakistan were to be awarded to it.Pakistan's fears of India damning the rivers were slightly assuaged by the [Indus Water Treaty],but India has started building dams and barrages on the rivers,in defiance of the treaty.Secondly,this was done against the wishes of the majority of the district's population.Some critics of Mounbatten now believe that,had the tehsils not been given to India,and the division would have been done justly,not only would a major massacre have been lessened,but also that the [Kashmir Conflict] would have never existed.The canal headworks have been the bone of contention between the two countries ever since the partition.They say Mountbatten had compromised the lives of millions of Muslims for the Hindu ruler of a Muslim State.Thirdly,Pakistan had an agricultural economy(and still does) and needed the canal head works that existin the districts.This justification is heavily criticized by many for three obvious reasons