The Left parties called for maintaining peace and tranquility in the state and country and resisting communal forces.
Senior Left leaders like CPI(M) state secretary Surya Kanta Mishra, Left Front chairman Biman Bose and several other top Left leader participated in the rally.
"Not only a mosque was demolished 25 years back, it was demolition of India's culture of unity in diversity. Observe BLACK DAY on 6/12 to resist any onslaught on the fundamental principles of our Constitution laid down in it's Preamble," Mishra had tweeted few days back.