India, May 14 -- Central Kolkata's education hub of College Street resembled a battleground on Tuesday evening as clashes broke out between workers of the state's ruling Trinamool Congress (TMC) and Bharatiya Janata Party (BJP) after a road show by saffron party chief Amit Shah.

A section of the crowd broke through the gates of the 147-year-old Vidyasagar College and broke chairs and glass panes and set fire to bicycles and motorbikes. A bust of iconic 19th century reformer, Ishwar Chandra Vidyasagar, was also vandalised.

"About 100 persons have been detained. Investigation is on to find out who are responsible. Those guilty would not be spared," said Kolkata police commissioner Rajesh Kumar, without specifying the number of those injur...