Even as US President Donald Trump’s steep hike in H-1B visa fee threatens to hit Indian software services providers, US lawmakers and agencies have separately intensified the scrutiny of the offshoring sector.Homegrown Tata Consultancy Services Ltd, the country’s largest information technology (IT) services company, and India-heritage Cognizant Technology Solutions Corp. were among the companies targeted by two senators, Republican Charles E. Grassley and Democrat Richard J. Durbin, over hiring practices. A ...