well, Rudra and Niharika get back together(YIPEEE), and the rest of the story is way too long. Here is a brief summmary. Dhruv-Vedika go to Hong Kong. Vedika is going to have a child, then due to Sundari's plan Dhruv dies, and Vedika is in jail, loses her child. Niharika and Rudra save her. They go back home in India but cannot share the fact that Dhruv died due to Viren being sick. Kavitha finds out that Dhruv died and Tara said she would not marry without Dhruv.
So Kavitha pleaded for Dhruv's twin (who she had never told anyone about), Karan, to come help them and get Tara married. She wanted Karan to act as Dhruv.
Karan comes and Tara gets married. Tara tells Abhi to open the case of Rahul's murder and catch the culprit. THe culprit is Rudra and Niharika, Tara finds out.