As per your marks your rank would be in the range of AIR 5000-10,000.
With a score of 600, your rank might be approximately between 7784-10036. This is an expected rank range:https://medicine.careers360.com/articles/neet-result-marks-vs-rank . Now regarding the Colleges that you may have a shot at, you have a chance in:

BPS Govt. Medical College

Kalpana Chawla Medical College

ESIC Faridabad

Having said that, this is based on 2018 data and cut offs change every year. Cut offs change every year depending on various factors such as no.of Candidates appearing for the exam, no.of Candidates qualified, top NEET score and difficulty of the exam. For a complete list of colleges that you may have a shot at, please use our College predictor:https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer

National Eligibility cum Entrance Test

Result | College Predictor | Answer Key | Cutoff | Counselling | Eligibility | Application | Accepting Colleges

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