Cognizant — unprofessional to call for an interview without viewing profile

Hi, i am naren m.
I received an email from lakshmi from your company for in person interview. I came down and cleared 1st round interview. Only during the final round i was told that they do not hire under graduates. If that would have been told to me earlier, i wouldn't had to waste my whole day for this. Never expected such unprofessional and irresponsible thing to happen from such a reputed company.