The return on investment of the ROI depends more on the candidate's performance than the institute itself. The primary step should be to focus on achieving a high CAT score around 95+ percentile and apply to the top B Schools. If you fail to do so then you can consider the aforementioned B Schools.
Assuming the average package to be around 8 LPA, out of the entire batch around 20 students will secure a package of more than 8 LPA, in some cases maybe 12 or 14 LPA. Now compare these packages with the fees of around 9 Lakhs and also take into consideration other expenses, your investment will be around 12 lakhs. This is great for someone who received a package of 14 LPA, but for those who received low packages, the ROI is very less.
So, it depends on how well your profile, grades, and performance in the interview are!