Its a straight forward process begining with an online simulation mainly focusly to ascertain your leadership qualities and social skills. Second round lets them judge mostly your communication skills with an online interview. Be pepared to tell your achievements in your career for undergrads they should be your final year projects or thesis. After that if you are succesful Nestle will invite candidates for an Assesment Centre where they look for candidates with calm behaviour and situationally aware candidates.