Kolkata, Apr 01 (ANI): Rashtriya SwayamSevak Sangh (RSS) volunteers were seen assisting in the rescue and relief operations at the site of bridge collapse in Kolkata. The volunteers are seen providing water and food facility to the workers. The death toll in yesterday's flyover collapse tragedy that took place in Kolkata's Girish Park area has raised to 23. DIG of National Disaster Response Force (NDRF) SS Guleria confirmed this.