After an exceptionally good 100-day dash, in the course of which Union human resource development minister Kapil Sibal relentlessly wooed and was in turn wooed by the media, he appears to have encountered his first obstacle. The one-day hartal by IIT/IIM professors will not only test Sibal’s nerves but also his ability to deal with the problem. He also appears to have ruffled the feathers of some of his cabinet colleagues by pushing his agenda on higher education. Speaking to Anuradha Raman, Sibal says he is unfazed. Excerpts: