This is just my prediction.
But after 2-3 weeks of Krishna and Aryaman's initial days of matrimony trouble.. where the family would not accept Krishna and she tries like an idiot to impress them. and when TRP is little stable. Then they will show Mohan's track.
Maybe like Roli from Sasural simar ka... He will become college student after his sister's shadi and he will be enrolled in a college. After initial days of stupid bullying track.. because that would happen. Krishna will be asked to provide money to pay off her father's debt by Pinkesh. Krishna will try her best and Mohan in order to help his sister.. will take the form of Mohini and enter some dance competition.