Calcutta, Jan. 16 :    Calcutta, Jan. 16:  Thirty-year-old Putul Gupta, supervisor of a clinic for sex workers in Kalighat, was seriously injured on Tuesday after a local anti-social chopped off her ear-lobe. Putul was rushed to SSKM Hospital, where she is battling for life. Another sex worker, Nisha, 24, and her husband Tapa, alias Sanjoy Choudhury, were arrested in this connection. According to the officer-in-charge of Kalighat police station, trouble started in the afternoon following an altercation between Putul and Nisha over a client in Kalighat. When Nisha's husband, Tapa, came to know about the matter, he allegedly beat up Putul and she, too, hit him back. Tapa took out his razor and tried to slit Putul's neck but, in the scuffle, chopped off her ear-lobe. Putul fell to the ground, bleeding profusely. Later, local sex workers protested the incident and demanded security. Putul, a sex worker, was also in-charge of Usha Co-operative Multipurpose Society for sex workers.