Mumbai - On one hand civic officials, primary teachers and private non-aided school teachers are enjoying Diwali bonus. On the other hand, 150 teachers of secondary schools haven't received bonus. Education committee’s member Shivnath Darade alleged that BMC is showing disparity between primary and medium schools by not giving bonus to the latter. In protest of this, from Thursday around 2 pm, he has started a hunger strike in front of BMC HQ. Even after 24 hours, no civic official came forward to have a word with him.