How did Eku come to the cliff?

on 23rd episode we saw that Vaidehi sent a message from Eku's phone to KT's asking her to meet him at the cliff. Then she sent a message from KT's phone to Laksh's asking him to meet her. But how did Vaidehi managed to get Eku to the cliff? It was not shown that she sent another message from KT's phone to Eku asking him to meet her, or do we have to put it together?