Dear Candidate, first of all you were being interviewed for an INTERN position and not full time role, there's alot of difference in recruitment process owing to capability judgement of a candidate. Secondly, in our email of inviting for an interview, we clearly mention that if you will be selected you will be informed over email within 3 days, since we do not like to keep false hopes for candidates. Still, if you chose to travel any part of the country or world, that is completely candidate's choice. Deciding a candidate's fit to the company is company choice because one doesn't work for free.