Lucknow, March 19 -- Late night killing of a teacher by a police head constable following an altercation in the Civil Lines area of Muzaffarnagar on Sunday led to widespread agitation by the teachers' community.

The agitated teachers held demonstrations in several districts, including Varanasi and Prayagraj, and boycotted the evaluation work of Uttar Pradesh Board examination answer sheets.

The teachers are demanding that the murder accused be booked under the National Security Act, the victim's family be given Rs 10 crore as compensation and a family member of the slain teacher be given a PCS-rank job.

They are also demanding that the last rites of the slain teacher be performed with state honours and in future teachers should not be se...