Yes, you are definitely eligible for need if you have passed your 12th boards with physics chemistry and Biology and main subject even you have done it in a single setting course. Well the primary eligibility criteria for neet is that you must be 17 years old as on December 31st of the year of exam.And you must have passed class 12 or the equivalent with physics chemistry biology and English as main subject you have qualified all this criteria your mode of education doesn't matter. NEET ELIGIBILITY