CTC discussion

Hello All,

I'm looking for a suggestion. Recently i got a job invitation call from a HR and they collected basic details like ctc, expected ctc, I told that I'm expecting 10LPA and they are ok with that and they scheduled interview and I cleared the technical & Managerial interview rounds. Now my HR discussion is scheduled next week regarding compensation, but I heard from few guys from the same company that the budget for the position is more than what I've asked(10LPA). Can someone pls suggest how can I ask for more ctc like 13 or 14LPA because before interview I told that my expectation is 10LPA.

(I have around 3 years of exp in Virtualization and my current ctc is 4.6 and holding an offer of 8.5lpa)

Pls don't take this in negative way, need genuine suggestion pls!!!.