Idris Ali trying to calm supporters

The persons/organisations associated with the events that led to the flare-up on Wednesday

Name: Idris Ali

Who/what: President of the All India Minority Forum

Known for: Filing public interest litigations (PILs). He says he has filed around 300

What does his forum stand for: Raising minority issues from across the world

Political affiliation: Congress

Earlier trouble with law: Known for putting up road blocks

Presence: Nothing significant

Name: Siddiqullah Chowdhury

Who: Secretary of the Jamait Ulema-i-Hind and convener of the Milli Ittehad Parishad, an umbrella body of minority organisations

Known for: Came under the spotlight during the Nandigram agitation

Political affiliation: Anti-Left

Earlier trouble with law: When he tried to go to Singur frequently to fan anti-Tata Motors protests

Presence: Across Bengal

Idris Ali trying to calm supporters

Name: Toha Siddiqui

Who: President of the Furfura Sarif Muzadeedia Anath Foundation

Known for: One of the members of the pir clan who presides over the religious sect

What does it stand for: Voices minority issues

Political affiliation: Anti-Left

Presence: Large following across Bengal

Strength: Popular support