Is MBA in HRM a good option in terms of academics and placements from the new IIMS? I have heard that only IIM Ranchi is good for HRM.

Many of the old and new IIMs do not place as much emphasis on HR jobs or electives as XLRI and TISS. If you took a few HR electives and graduated from an old IIM, you may still be able to secure a decent HR job. However, attending XLRI or TISS would likely be a more practical choice for someone interested in a career in HR. New IIMs, including IIM Ranchi and IIM Indore, which now offer PGP HRM programs, tend to have fewer top general management or consulting roles available and almost no great HR roles. 

An MBA in HRM is generally considered most useful from XLRI, TISS, SCMHRD, XIMB, and MDI. If you are considering an MBA in HR from IIM Raipur, Udaipur, Sambalpur, Jammu, Nagpur, Bodh Gaya, Trichy, or Vizag, it may not be the best decision.