Man, people don't forced KDA to sell illegal lands. They just buy a file that KDA verifies. How can someone know that this is park property or not leasable property. KDA will provide you all the required documentation, do demarcation etc.
We faced an issue back in early 200. where we bought a land in Gulistan Johar from a known agent. Visited the site, got all verification done via KDA and paid all fee via bank that KDA requested etc. and got property transferred in our name.
Since that area was undeveloped, we didn't do anything there, after couple of years when we started demarcation & found out that it was not an actual piece of land and was part of park. KDA on our face told us that we had fake papers & there is no duplicate copy available at their centre, even refused to accept the bank challan and made some story around it too.
After struggling for 2-3 years, we finally sold those papers, as someone willingly bought it from us. But who should we blame in this whole story?