Hello there,
Yes, 180 marks is a good score. Your percentile will be around 90-92. Since you haven't mentioned your category, I'm assuming that you are from the general category. With this marks, your rank will be 85000 approximately. You will get many good colleges with this rank.
Also, note that these are just approximations and not the exact percentile. The 'rank vs marks' changes every year depending on the difficulty of the paper, and the performance of other candidates.
Hope this answer helps you.
Good luck!!

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