Trending @Cognizant; Recently cleared interview, need advice on negotiating

Hi,

I recently gave interview for one of the IT service based company and seems like I cleared the technical interview and a got a mail from HR regarding final interview schedule (probably HR round), Now i recently got promoted in my current organisation during the notice period but hasnt received the updated compensation details yet, my manager said it will be sent to you before 20th Oct, by asking some people i am expecting my package will increase to ~8.5 lpa, now how should I negotiate on the final round of new company? i am not expecting the updated compensation details to be available before the interview, so what should I mention to HR when negotiating shall I mention my current ctc (7.23 lpa) only or the updated one (which will take few days), your advice is highly appreciated on how to professionally and in best way to navigate this situation.

And, also please advise as how much should I expect? I have 3+ yoe in Oracle Visual Builder and plsql and switching for the first time

Thanks.