Jinnah worked with INC for quite some time, he was very close to many leaders and also considered some Hindu leaders as his ideal , eg. Gopal Krishna Gokhale. His relationship with Congress soured after the rise of M K Gandhi and he started getting a feeling of Congress sidelining him. This was the reason for him to demand Pakistan, the entire creation was a result of ambition of one man and his insecurity with others as well as the inability of INC lead by M K Gandhi to make Jinnah feel secure with a united India. After the decision for partition he almost went with an attitude of vengeance to accede as many Indian states into Pakistan as possible and he also sent troops to J & K. Personally he believed very little in Islamic faith and wasnt exactly a strict follower of Islam as defined by hardliner Islamic clerics of today. Basically many people think that Jinnah only wanted to use the scare of partition to gain more clout inside INC leaders circle but when that failed things went horribly wrong and led to partition and mass killings. http://en.wikipedia.org/wiki/Muhammad_Ali_Jinnah
