Thousands of supporters of India’s youth “Cockroach” movement and several student groups demonstrated in the southern city of Bengaluru on Thursday, stepping up a nationwide campaign that is demanding the election chief’s resignation over a revision of voter lists that has removed over 130 million people from the rolls.

The signatories defended the Special Intensive Revision (SIR) of electoral rolls under the Representation of the People Act, 1950, citing Supreme Court safeguards and warning that unsubstantiated clai...

The protest march triggered heavy traffic congestion across major arterial roads during evening peak hours.