There has been a history of immigration occurring between India and Pakistan due to the two countries sharing a common border.
[3][4] Between 1979 and 1981, there were estimated to be roughly 18,302 Indians who were overstaying illegally in Pakistan.
[5] According to Pakistani government figures in 1995, there were believed to be thousands of Indian immigrants living in Karachi, Sindh.
[6][better source needed] In 2005, the Indian government acknowledged that there were 1,348 Indians in Pakistani jails, including civilians, captured fishermen, convicted criminals and prisoners of war.
[7] India has alleged that Dawood Ibrahim, a prominent Indian underworld don, resides in the Pakistani city of Karachi, although this claim has been rejected by Pakistan.