The placement statistics released by IIM Ranchi are not particularly fake but yes very exaggerated. For example, the recruiters who just recruited 2-3 students a couple of years ago are still added to the list of recruiters. This tactic is employed to show off the brands of top companies.
The CTC is calculated wrongly and also exaggerated. The same role offered by the same company to students of other B Schools is shown at IIM Ranchi to offer a CTC higher to its own students. This reality is wrong and not what the company promised. This has now come into the notice of many and IIM Ranchi Is slowly losing its reputation. The students feel cheated because many students chose Ranchi over other IIMs despite calls from them just because of its placement statistics.
One way to clear the misconception is to check the NIRF placement report. You can see from it that Ranchi lies below Trichy and even Udaipur. So do your part of research before finally choosing IIM Ranchi.