guidance required,

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salam.i want to shift in islamabad in i-9, i-10 or g-9/10/11 in couple of years, in a 5 or 6 marla house.
we are are a middle class peoples.plz Mr cmy or any other person may kindly give me advice that which sector is best i-9/10 or g-9/10/11 in view of
a. for investment
b. for rent
c self residence
d. for social interactive point of view
e.any other benefit like economical commodoities/conveyance etc
your cooperation in detail alongwith comaprison in between two viccinity requird
thanx