Guys I generally don't predict becoz it takes out the fun from watching NBT but for Mohan;s sake I am predicting - Here's what happened: Munna and Addu became fast friends while washing utensils at Shiv bhojnalaya where Addu used to tell Munna about his s------ baap.
Now Addu met with an accident one day and Munna thought that he is dead. But Addu was rescued by a childless couple who took very good care of him so he did not want to return to Indore. Meanwhile Addu's stories have been festering in Munna's mind all these years so much so that he feels only hatred towards Mohan and he feels that Mohan is responsible for Addu's death and he wants to avenge his friend.
But Addu is now grown up and has become a good person and completed his studies. He comes across MM and Nanhi searching for him and recognizes them but does not let on that he is Addu.
How's that for a first attempt at predicting. Thodi filmi hai but chalega. Do tell whether you like or dislike. Criticism is always welcome.