NEW DELHI: Protests over the alleged rape and murder of a 27-year-old veterinary doctor spread to cities across India on Monday as people demanded tough and swift punishments, including public lynchings, to stop crimes against women. The woman was raped, asphyxiated and her dead body then set alight on Nov 27 on the outskirts of the southern city of Hyderabad, according to police. Four men aged between 20 and 28 years have been arrested in connection with the crime. Protesters and lawmakers said they wanted authorities to ensure that rape cases were speedily processed and those convicted punished instantly, similar to demands that were raised after the fatal gang rape of a young woman in New Delhi in 2012 that had caused outrage and international condemnation. In the eastern city of Kolkata, where protests were planned throughout the day, college student Bandana Mondal said it was becoming difficult to sit back and watch silently. 'It is time to hit the road and seek faster punishment for the offenders. The process of law appears slow and there is hardly any deterrent,' she said. Indian police registered more than 32,500 cases of rape in 2017, according to government data. But tens of thousands of such cases remain stuck in courts, often hindering victims and their families as they navigate the slow and cumbersome legal system. In 2017, for example, courts only disposed off about 18,300 cases related to rape and more than 127,800 such cases remained pending at the end of the year. 'It's very frustrating for the victim. You keep on going to court, and even after evidence is over, they take a long time to pass the judgement,' women's rights lawyer Flavia Agnes told Reuters. But in a sign of the volatile public mood, a lawmaker in India's upper house suggested that rapists should be strung up before a mob. 'I know it's a little harsh, but I think these kind of people need to be brought in public and lynched,' said Jaya Bachchan. In Hyderabad, which has seen the largest of the protests, student activists linked to Prime Minister Narendra Modi's ruling Bharatiya Janata Party also asked for capital punishment. 'We demand the culprits be hung in public,' said Sirisha, who only gave one name. At a protest in New Delhi, 19-year-old college student Aditi Purohit said that she was so angry and frustrated that she had left her classes and come out. 'If they (the accused) were in front of me, I would have killed them,' she said.