Just got an email to confirm resident visa is approved.
For timeframe reference to other people awaiting decision my timeline was as follows:
19th March, 2013 - Skilled job offer (Structural Engineer)
2nd May, 2013 - Applied Temporary work visa (Dubai Branch)
9th May, 2013 - Visa Approved
28th May, 2013 - Landed NZ
I forgot the date for EOI
19th August, 2013 ITA received (240 points)
27th September, 2013 ITA lodged - SMC (Christchurch Branch)
9th December 2013 CO assigned
13th December 2013 - CO asked for further documents
14th January, 2014 - Documents submitted
7th April, 2014 - Approved in Principle
Thank you everyone who helped throughout this forum.
PS: I am a Pakistani national - lived, worked and studied in UK and now moved here.