Pinki today walked out of jail on bail after 26 days of judicial custody on charges of gender misrepresentation and rape.
Members of civil rights body Association for Protection of Democratic Rights (APDR) also joined the procession that started from the Press Club and ended at the football legend Gostha Pal's statue opposite Eden Gardens.
Condemning the alleged 'inhuman treatment' meted out to Pinki by the authorities, Banerjee said, "It's really unfortunate. It's a matter of shame for sportspersons.
"A group of about 17 specialised doctors over a period of 25 days conducted various (gender determination) tests on Pinki. But they are yet to prove that Pinki is not a female. How can one justify that?" Banerjee asked.
Demanding justice for her, former India footballer Surajit Sengupta said, "It's a very sad situation. A wrong message has been put across in the ill-treatment meted out to her. This can only happen in Bengal."
APDR general secretary Debaprasad Roychowdhury said, "We would continue our fight for Pinki. We want justice for her."
Acting on a complaint by the APDR, the West Bengal Human Rights Commission had earlier stepped in the matter, directing the home, health and police departments to inquire into the alleged 'inhuman torture' on the former athlete.