I am a product manager cum business analyst with 7 years of experience my current salary is 6.3 how much can I except in my next company?

Severely underpaid imo. You must be doing Project Management grunt work rather than Product Management work sadly.

Git gud and switch to a better company with better comp.

Bro, First accept that you are getting too low.

If you're considering a career as a Product Manager, it's important to understand the market trends and salary expectations. It's recommended to aim for a salary range of 12-18 lakhs and avoid disclosing your current salary during the interview process. If you need to improve your skills, consider taking courses to help you upskill and stay competitive in the job market. Bro, it is too little for a product manager, you need to buckle up and skill up your game, do not disclose your current salary to the companies you are applying to aim for the at least 12-18 lacks. Do some courses if needed.

6.3 lpa?

Yes

Per annum