It seems as if the track of Arnav missing is now coming to an end as Khushi has found the hideout where Arnav was being kept. In the last episode, Khushi saved Arnav from the goons, and Arnav is aware that it is Khushi, herself, who came to save him. On the other hand, Shyam has found out that Khushi had been lying to him the whole time.
According to an article on Bolegaindia, it says that the next few episodes might have Khushi being taken by Shyam in his car while Arnav follows them to save Khushi. The current promo being aired shows that Khushi is hurt after everything she did to save Arnav. It also shows Arnav and Khushi together helping each other.
Every fan of the show, if you are excited about the return of Arnan then tell us how you want Arnav to save Khushi from Shyam in the comments below.
Source - Bolegaindia