How can mahesh remember his parents after killing nazar?

Well the movie's depth was much more than you were able to understand....Second thing it was a new attempt In TFI and become one of the best attempts of Indian film industry so its definately pathbreaking. Third is that after killing nassar Mahesh understood that he is was living in london in childhood and when he hears that peter tatha statue king poem /song from the school bus and the see the children coming out of bus and meeting their parents and he is able to remember the same way he used to come from the school and wait for his mom and remembers the the same poem his mom taught him in his language to remember the road from that busstop to his house..so he is able to recall becuase of that song and that tune. See the last part after reaching home he remembers parents after seeing their photo in his slambook.(Sukumar _/\_). I think U should grow up kid to understand ^1^.