The story in brief is this:
ISI engaged its agents, directly or indirectly, to do the groundwork in advance for the noble cause to be carried out in Mumbai. Geelani a.k.a Headley, for example, was engaged to carry out recce while Rana was engaged via Headley, to provide material support for the cuase. Members of LeT, under the able leadership of the great great professor Hafiz, then carried out the noble cause. All of it happened under watchful eyes of ISI.
So you see, as much as you wish for it, there is still no disconnect.
This guy's claiming that LeT WAS NOT INVOLVED AT ALL. Please try to read his claims before trying to sound witty like you have done many times before.
Whole world believing this? 
Pakistanis can argue and delude themselves all they want, the truth is geo-politically Pakistan does not matter to Indian strategists. Just another state in a precarious condition , fighting for stability. All we should be concerned with is the safety of our borders , and continued infiltration of Pakistan nationals for subersive activities on our soil. Its neither necessary nor relevant to "normalize " relations at this stage .All sticky issues(Kashmir , Water issue ) will automatically fall into place once we build up a strong position by virtue of our economy , military and international clout.