I think the 450% price rise for leasing has been posted in PTCL DSL topic. It will not effect PTCL DSL users, it will just effect other ISPs. I assume this increase as a way to kill competition for PTCL DSL but this was done illegally, they did not inform PTA about it so no PTA permission and Ministry of IT is against it too as per the news article. Association of ISPs in Pakistan also plan to go to court if PTCL implements it.
OK, this is just posted by Adil in PTCL DSL topic. Thanks Adil!
PTCL has taken back the said notification. It means the ridiculous price rise in leased lines for ISPs is not going to happen, which means the competition remains.