A young Aam Aadmi Party volunteer, who had come to city from Delhi two days ago, was attacked by two bike-borne assailants with a sharp object in Andheri (West) on Friday.
Not ruling out involvement of rival parties, a senior AAP leader has demanded registration of an attempt to murder case.
"Ravat is part of a 10-member team that has come to Mumbai to conduct street plays and campaign for our Mumbai North-East candidate Mayank Gandhi for Lok Sabha elections," said Dharmendra Gaud, an AAP volunteer.
The Amboli police said the incident took place around 8.45 am when victim Pushpa Ravat was on her way to a temple near Azad Nagar area.
"They were shouting 'Bharat Mata Ki Jai'," said 23-year-old Ravat.
According to Gandhi, the attack on Ravat was planned as she was not wearing any jewellery. He said he won't name of any political parties at this stage and said that the police should probe from that angle too.
"The police should register a case of attempt to murder. We will protest outside the police station if our demand is not met," said Gandhi.
Senior Inspector Ramesh Mende said, "A case has been registered and we are seeking legal opinion to ascertain whether attempt to murder charge can be applied."