The young population (till 24 years), constitutes 40 per cent of the victims, other than motor vehicle drivers, according to a report by Centre for Science and Environment (CSE).
An national assessment of road accident risk also says that as many as 53 per cent of the victims in the bracket of 25-65 years fall prey to road accidents.
In 2012, about 5,879 children in the age group 0-14 years and about 26,709 young adults in the age group 15-24 years were victims of road accidents, the report said.
Over the last two decades, while the total number of accidents and injuries shows only a small downward dip, fatalities have increased sharply.
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The proportion of fatal accidents in total road accidents is up from 18 per cent in 2003 to 25 per cent in 2012 (as per official data). More people are dying now as cities allow vehicles to have more speed on roads, while depriving people of safe access to these same roads, the report said.
Approximately 5,000 cases require major operations, the report said.
"Of the total cases reported for injuries, head injuries account for 40 per cent while orthopedic and torso injuries are 30 per cent. In cases of brain injuries, there is only 40 per cent chance of recovery," the report said.
According to a CSE official who was related to the assessment, highly motorised cities like Mumbai, Chennai, Delhi, and Bengaluru top the list with the highest numbers of injuries and deaths as recorded by the Union ministry of Road Transport and Highways.
Studies also indicate that smaller cities like Lucknow, Vadodra, and Agra that have newly built highways, show increasing vehicle conflict and accident risks.