Which one is better, SIBM Pune or the new IIMs like Raipur, Ranchi, Rohtak, Kashipur, Udaipur, and Trichy?

All of the institutes you mentioned are on the same level. Ranchi and Trichy have a slight advantage. Furthermore, having an IIM brand never hurts. It all depends on personal preference; you may prefer SIBM Pune, which is also a very good institute, but some candidates leave MDI Gurgaon and NITIE for the newer IIMs. 

Furthermore, a degree from a government institute is far superior to a degree from a private institute. The smaller batch size of new IIMs also facilitates placements. Examine each institute's faculty details, placement details, batch size, infrastructure, and so on, and make an informed decision.