I have a few friends from IIM Rohtak and they were able to help resolve this confusion. According to them, it means you are shortlisted for only IIM Rohtak. All the IIMs will call you separately if they shortlist you. Though you need to appear for the CAP if you get shortlisted in only one of the nine newly formed IIMs. For more detailed information, you should check the official website of the institute.
Also, keep yourself updated by visiting the websites regularly so that you would not miss out on the deadlines for the forms and other related information.