In Birmingham the premier shopping areas are in fact Ladypool Road, Coventry Road, Alum Rock Road, and Soho Road, there are also shopping centres in Lozells Road and other smaller ones. All are dominated by Pakistanis except Soho Road which is about half and half. Also please note that Pakistanis have a long history in Birmingham as long as or longer than Sikhs. There is no friction and 99.999% of people live very happily together. Sikhs and Pakistanis have always lived side by side and worked side by side and visted each others houses and festivals since the first ones came to Birmingham in the late 1940s to date. Look at facts and not fiction, people get on very well. Also most Pakistanis are now moving to Hall Green, Hodge Hill, Great Barr and other areas which are nice areas and can be described as having large Pakistani communities.
Also please remember that sikh areas in west london were created by white flight, if sikhs do move to any other areas lets see how long goras stay there. Hatred against other asians will not benefit sikhs and i mention that point based on the writings of ranjit above who used a analogy that refers to manure and flies, surely this shows a prejudiced mindset, please think before making such comments.