Guys, after 4 yrs and 10 months, I've finally received the grant letter yesterday.
Here's my time line : Applied 176FS - 4 June 2009, Moved to 175 after new IELTS score - 3 Feb 2014, CO allocated - 25 Feb 2014, PCC and Med submitted - 31 Mar 2014, Grant Letter - 24 Apr 2014.
I wish everyone here will receive their grant letters as soon as possible so we can close this thread and move on to another Best of luck guys !!