my birth date is 01 january 2001 may I eligible for NEET exam in 2018????

Yes, as per NEET guidelines, a candidate is eligible to appear for the exam if he/she has completed 17 years of age by 31st December of the year joining respective Medical/Dental college. For NEET 2018, the above criteria would correspond to his/her date of birth on or before 31st December 2002 As per your questions, you would have already completed 17 years of age before appearing for NEET

No, you are eligible as a candidate who wants to give NEET should be of 17 years at the time of admission so keep the tension away and prepare well. Good Luck!!!