Hello Karthik

To get admission in Coimbatore Medical College, your NEET score should be minimum 550+
As the cutoff changes every year, the safe marks range can't be predicted this way and so you need to keep high target so that atleast you can score near to it or even more which will surely get you admission in any of your desired college.
So prepare well and study smart.!
Good Luck.!!

Hello,

To know about the detailed analysis on coimbatore medical college cut off, and neet score needed for various categories, please go through the following link 

https://collegedunia.com/news/e-457-neet-2017-cut-off-for-coimbatore-medical-college-coimbatore

Hope this helps...