Hello,
You can only apply for 85% state quota seats for mbbs/bds for only the states you have domicile certificate/proof of or have passed 11th - 12th from.
However you are applicable for admissions through NEET in private medical and dental colleges throughout india (although some seats in private colleges are reserved for state students Eg - karnataka , majority of private colleges are open for students from all states)

You can use careers360 college predictor to know the colleges you can get at your NEET score;-