After yesterday's episode, you can tell that Swati is behind Samar's BT and I think she is the one who send that lady to get a job at Samar's office so that she can know everything insider like tender and all that. now swati will ask vivian to start the business and he will win all tenders.
also, she is giving wrong medicine to samar that's why he is getting all this headache.. remember he says that after taking medicine he is getting headache.. i think those medicines to make him pagal or something in that rout.. that's our ekta, she uses same technich in all of her serials so i would not be surprise if Maya and Swati would be hand to hand..