Previously Resident, now Non-Resident: Can I invest using my old account?

Hello All,

Needed a piece of advise from the all of you on the forum

I was in India in major part of last financial year (09-10) and hence a RESIDENT of India. I had a demat account (linked to my bank and brokerage). This year I am NON-RESIDENT, as I have spent major part outside of India. Can I still use my brokerage/demat account to purchase stocks OR do I need to open a new account as I am not a resident for this year any more.

All answers are really appreciated.