Who told you that he is still studying it?
http://www.dailytimes.com.pk/default.asp?page=2009\07\19\story_19-7-2009_pg12_2
Kamal examined the newly installed storm water drain system and was satisfied to see that the drain system was working well. While overseeing the situation around the Signal Free Corridors-I, II, Shahrah-e Faisal, old city areas and the cleaning and de-silting work of storm water drains at Nagan Chowrangi, he maintained that during the heavy downpours in the city about four years ago, the citizens saw the worst of the situation, as heavy rains wreaked havoc in most the city while most the streets drowned because of the lack of a proper drainage system. During his visit to many other areas of the city including Saddar, SITE, North Nazimabad, Gulberg, Lyari and Liaquatabad Town, he noted that the CDGK municipal services department did not have to dewater any road during or after heavy rains.
Who said there were kickbacks? Any reference?
Before blaming MK for every evil, you need to realize that rains this year have been unusual.
The Meteorological Department said 207 mm of rain was recorded in 1977 while the city received 205 mm of rain at Masroor Base area.
Major problem Karachi is actually having due to this rain is power outages from KESC. And this is not under the control of city government.