CallHealth interview questions

interview went well, received offer, while joining When I was performing the joining procedure filling few forms manually. Unfortunately aperson came said we kept you on hold and later after an hour. They said we are rejecting you. When asked reason for rejection at this point said I didn't perform well in interview. later came to know from an acquaintance that due their office politics they have given our rejection nothing else. How Ridiculous... not only me they even said to another girl also.