Interview is pretty cool my friend. You neednt worry at all. Its important that you get to know your file update as early as possible. R u a 2007 applicant?
Interviewer (VO) was from London office, a very friendly officer. he went through all our original docs, asked a few questions about marriage, job and education. compared all the originals with the attested copies that we had submitted last year to the London office. it took about 25 mts. thats it. He promised us to send our medical re do request within 3 weeks followed by PPR.
But i must tell you this friend, i too was eagerly waiting for my PPR since i had completed my first medicals in 2010 (NOv). I waited till August, sent them a case specific enquiry and got a reply stating that i am selected for a QA interview and only upon successful completion of this step i would be given a PPR.
So pls send them a mail and find out whats the current status of your case file. I missed my interview letter which they sent by post.... so i do not want anybody to undergo the same....