I have scored 184 in the NMAT. Do I have any chance of getting admission in NMIMS Navi Mumbai or ISB Hyderabad?

With a score of 184 in NMAT, you have a decent chance of getting admission to NMIMS Mumbai, but as the cut-off for ISB Hyderabad is usually higher than that of NMIMS, so your chances of admission to ISB may be lower than NMIMS Mumbai.

That being said, the admission process for both NMIMS and ISB is holistic and takes into consideration several factors other than just NMAT scores, such as academic performance, work experience, extracurricular activities, and performance in the interview and/or written exam.

Therefore, it is difficult to predict your chances of admission without considering your overall profile. 

I would recommend that you consult the official websites and keep checking the Collegedunia articles to get a better understanding of their admission processes and criteria. You may also consider speaking to current students or alumni of these institutes to get insights into their experience and advice on the admission process.