Tata Motors said on Monday it will raise the prices of its commercial vehicles by up to 3%, its third hike this calendar year to offset the residual impact of past input costs.The price hike, effective Oct 1, will be applicable across its range of commercial vehicles, the automaker added.The company previously raised prices by 1.2% in January and by 5% in March to ensure its vehicles comply with the new emission norms.India implemented stricter norms through phase II of Bharat Stage 6 from April 1, including testing...