Want to buy in Sector E-12 Islambad. Need information on Development.

Can any body have information regarding the development of Sector
E-12 as i want to buy property in E-12. It is Almost opposite to D-12 and the rates of PLots are almost half the rates of D-12 . But the main question here is regarding the Possession for construction and the development i.e infrastructure provided by CDA.

I want to ask that can any body know the status of provision of posession by CDA in about how much time. ?