India, Oct. 12 -- Congress leader Rahul Gandhi on Monday stepped up the Opposition's campaign against Chief Election Commissioner Gyanesh Kumar, alleging that the poll panel chief was under pressure amid protests over the Special Intensive Revision (SIR) of electoral rolls and announcing that INDIA bloc leaders would file a petition in the Supreme Court.

Addressing reporters in Delhi, Gandhi claimed Kumar was worried by the protests and urged citizens to join the Opposition's march towards the Supreme Court, carrying the national flag.

"Gyanesh Kumar is in fear. He is unable to sleep," Gandhi said.

The Congress MP also claimed that a section of the police personnel deployed during the protests sympathised with the demonstrators, despit...