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The railways has maintained the best safety record in 2017-2018 fiscal in over five decades, according to official figures. As of March 30, 73 accidents were reported across the railway network, compared to 104 in the previous fiscal, the lowest in 57 years. "The main reason behind the improvement is track renewal, the railways carried out renewal of 4,405 km of old rails in 2017-2018. This is the highest ever progress of rail renewal and exceeds the target of 4,400 km kept for the year," a senior official of the ministry said.