Supreme Court of India held computer test and interview on 14.09.2013 for the post of Assistant Librarian.

Following Details :

0) No.of post 5 (five) (already decided)

1) 15 Candidate shortlisted for computer test and interview. OR Only 15 candidate send admit card.

2) But appear only 11 Candidate  

3) Computer test passed 9 candidate (2 fail)

4) and 9 candidate appear interview and

5) finally 5 candidate have been selected.

So,  my question is :-

According to DOPT (GOI) rule ratio of interview 1:3

1. Why  shortlisted only 15 candidate?

2. Why  fail 2 candidate in computer test?

So, I have option to go Court/ CAT/DOPT. please suggest me.