i think that on the wedding day or the day before, Mayank is going to try and kill Lakshya or something. Eklavya might be blamed, then real truth might come about of who is the culprit. One thing i think is for sure is that kt and lakshya will not get married even though i really want them to. For one Sanya's name is still being mentioned by Tripti, and Mayank's voilent little actions against Lakshya's stuff.
For a happy ending however, Tulsi might suspect that something is going to go wrong on te wedding day as Eklavya will stop it or something, so then she can secretly plan for Lakshya and kt to run away, get married, come backto shantiniketan as a married couple. This way no one can try and break them apart as well.