Kathmandu, Aug 5 - Six Indian were mowed down by a speeding car in the heart of capital city Kathmandu early Wednesday, the day Nepal celebrated the Rakshabandhan festival for longevity.

Police said the dead include two women and two teenagers, all of them from Bihar. A seventh victim, who suffered serious head injuries, is fighting for his life in a neurological hospital in the capital.

Bir Hospital, Nepal's oldest hospital, was in the eye of a storm Wednesday with local people and the victims' relatives erupting in protests.

Enraged protesters burnt tyres on the main road, disrupting traffic. They raised anti-police slogans, saying cops were not serious about arresting the guilty.

The tragedy occurred around 12.45 a.m. as the family of 15-year-old Sanjeev Gupta, who came from Bihar's Sitamarhi district to do business in Nepal, were coming out of the hospital in the Tundikhel area of the capital.

The teenager was suffering from stomach pain and with the spectre of a diarrhoea epidemic raging in western Nepal, had been rushed to the hospital Tuesday night.

Hospital personnel said seven people, including the teenager, were leaving the hospital when a car, hurtling at high speed in violation of traffic signals along a one-way street, ploughed through the group, killing six on the spot.