Updated Dec 31, 2020 | 20:58 IST Over 100 para teachers on Wednesday blocked the College Street crossing in the city and formed a human chain as part of their ongoing protest to press for immediate wage revision. Para teachers block key Kolkata street as part of protest | Photo Credit: Representative Image Over 100 para teachers on Wednesday blocked the College Street crossing in the city and formed a human chain as part of their ongoing protest to press for immediate wage revision. The para teachers, on an indefinite sit-in near education headquarters Bikash Bhavan since December 18, alleged there has been no response from West Bengal Education Minister Partha Chatterjee to their demands.