Remembering the brutal Nirbhaya gang rape case in Delhi on its fifth year, West Bengal Chief Minister Mamata Banerjee on Saturday called for making a safe society."Remembering #Nirbhaya on the fifth anniversary of brutal Delhi incident. We cannot compensate her loss but let us resolve to keep our society safe," Banerjee tweeted.The 23-year-old paramedical student was brutally gang raped inside a moving bus in Delhi on December 16, 2012, which led to her death due to internal injuries 13 days later in a Singapore hospital.The rapists, six in all, pounced on the young woman who had boarded the bus with her male friend to go home after seeing a movie.After committing the crime, they dumped both on the side of a road. Later, some onlookers alerted the police. The sheer brutality of the crime led to nationwide revulsion and street protests.