Can i Use my Lenovo S660 mobile in Dubai. I bought this phone in Hyderabad (India)?

Any GSM phone working on 2G / 3G or 4G can be used in UAE.
But PCS & CDMA phones do not work in UAE cell network
As far as I know all Lenovo phones work.

Just make sure your phone is not locked by your India provider (if you got it with contract).
But to use your same Indian SIM card & number in UAE you have to activate roaming option before you come. Check with your provider for details about how to do that and what costs are involved.