Hello,

The National Eligibility cum Entrance Test (Undergraduate), formerly the All India Pre-Medical Test, is an entrance examination in India for students who wish to study undergraduate medical courses and dental courses in government or private medical and dental colleges in India.

ESIC is central institute with around 50% seats reserved for  IP (wards of IP),
For admission into coimbatore ESIC medical college a NEET score around 430+ is enough however they also give priority to the people holding the ESIC card since time. However a score around 470+ will fetch you seats in top ESIC colleges like ESIC PGIMSR bangalore and kolkata.
Hope this helps