The end part 2

 The next week, they spend to work hard on the revenge, Ajay and Arjun also help them and they get the fruit of their hard work in just a month, and the result is as expected, their enemies get what they deserved. Sai's step dad and Mangal got punished for their crimes and they ended in jail for many frauds. Nisha and Nikita also get involved in many cases. Now creating a good career is impossible for them. Talking about Kartik's enemy, then they are completely taken care. So it can be said Sai's revenge is complete now.