Railway Minister Suresh Prabhakar Prabhu Saturday called for greater investment in the sector which will help it grow and in turn increase the gross domestic product (GDP) by 2-3 percent."Development of railways is on the priority list of our Prime Minister. If the railways develop, the economy will also be strengthened. GDP will also rise by 2-3 percent," Prabhu said. "Though our GDP is growing today, with a much more efficient railway system it will grow rapidly." The minister added that the country's economy is on the path of improvement and progress and this has increased the responsibility of the railways.The minister was here to flag off two new trains. He launched wi-fi facility at the city's railway station and later met Gujarat Chief Minister Anandiben Patel. Prabhu added that increased investment in the railways will create new job opportunities.