IBSAT

Confirm the offer from IBS officials. If it is a fraud they will tell you so. Go to their website and find the contact information. Tell them your situation and they will tell you accordingly. Approach the police in case of any fraudulent activity.

Yes, IBS does accept CAT score.

IBSAT is enough for colleges accepting IBSAT scores - like IBS Group - IBS Hyderabad, IBS Mumbai, etc.

NMIMS without a doubt is the best followed by IMT and IBS.

IBS marketing office would help you better in this as cut-off changes every year. It will be better if you visit IBS, Gurgaon campus for better chances of getting that campus.

IBSAT is good but not the best. If you couldn't qualify in any other exam then I would recommend IBS as a last try. Its ROI is good. For IBS test, the level of difficulty is moderate. I guess they do consider other factors like work experience and all even if you fall short in qualifying score by few marks. It is definitely not harder than CAT.

XAT is difficult than IBSAT. Decision making, Verbal, RC of XAT is bit tough. Maths is moderate.

You can apply for NITK-SOM (Good ROI), JKSHIM-Karkala and Manipal-SOM (Both are old and reputed, placement is better than average), Sahyadri Mangalore or AIMIT (Both are good at academics and extra-curricular activities, placement is decent).

Hi,
IBS Hyderabad doesn't offer HR program. It offers MBA full time program. You can refer the link for complete information on this course:
http://www.ibshyderabad.org/MBA-Program.html