Not just Delhi, the Class 12 CBSE Economics paper, turns out, was leaked in Himachal Pradesh as well. An exam centre superintendent in the hill state wanted to help a "weak" student and ended up leaking the question paper to nearly 40 others, police said on Saturday. Rakesh Kumar, a teacher at the DAV Centenary Public School in Himachal Pradesh's Una district, and two other employees of the school were arrested on Saturday by Delhi police for allegedly leaking the Class 12 Economics paper three days before the exam on March 26.