With appearing to be unwilling (or bereft of ideas) to revive Milsi's brain cells since he himself does not seem to have any, I thought we will give the poor bugger some suggestions. Here are some of mine:
-Yesterday I noticed Milsi wore the same shirt (under his white jacket) that he wore in the 'aur pass' scene. This shirt seems to either have no buttons on the top or they are broken since we can see his vest through the opening. Now Prachi can coyly walk up to him and volunteer to sew the buttons up while he is still wearing ths shirt. . If he gets angry , she can bat her eyelids . That should mesmerise the guy who will then go into one of his staring modes . In the meantime his better half can get the button sewed. That should bring back some pleasant memories!
-Yesterday I also noticed Prachi wearing the same yellow saree she did in the Michi photo she was forced to take down by . Now she can parade the saree in front of Milsi (spreading her pallu) and do the cat walk. I am sure the guy will start remembering the moments he spent, holding her close to his chest even as their private photographer captured the moment.
-If the yellow saree does not do the trick, she needs to rush up and change into the red saree she wore on KC night (burnt pallu and all) and rush with the puja thali to his room. Once inside and she has reached close to him, she should start swaying forward (as though she is all set to faint) so that our hero can catch her in his arms. That should trigger memories of the fateful KC night when after the initial support he gave her, he twisted her arms and broke her bangles in the privacy of their bedroom. So if the happy memories are not getting trigger atleast the bitter memories should come back to him.
Now can you think more ways for Prachi to revive Milsi's memory cells?