there is a neighborhood in Karachi called AligaRh Colony…where once a massacre took place in the 90’s i believe.
why this name? are the inhabitants/migrants mostly from AligaRh or their ancestors are somehow associated with AligaRh Muslim University or the colony was established by an old boy of AMU?
Qasba Aligarh is located with-in Karachi limits and consists of basically poor and lower middle class Mohajir families living side by side by Pashtoons brothers who mainly resides on the mountains mostly Afghan migrants who settled during the Afghan-Soviet War. Qasba Aligarh was basically made as a colony for journalists where amenity plots were handed out to the residents but due to the distance from the city most journalists sold their plots or give out to their relatives mainly Muslim Migrants from India to Pakistan.
May be it was originally named something else and then changed to Qasba AligaRh. There are many places in Karachi (I would say all over Pakistan) where names of areas changed after partition. You might have gone through many threads on this issue.
There are many areas in Karachi which are named behind areas in India. Agra-Taj Colony (Taj Mehal of Agra, India), Hyderabad colony (Hyderabad Colony - Wikipedia, the free encyclopedia), Delhi Colony to name few.