Complex sentence: Dhruv's mother, who doesn't like stammering or anything that doesn't work or run properly, fixes Dhruv's alliance with Thapki without knowing about her stammering problem.Finally Vasundra comes to know aboout Thapki's stammering and tries to separate Dhruv and Thapki.
Split into simpler sentences: Dhruv's mother, Vasundhara doesn't like things that don't work smoothly and hate stammering, fixes Dhruv's alliance with Thapki without knowing about her stammering problem. Finally Vasundhara comes to know about Thapki's stammering and tries to separate Dhruv and Thapki.