US envoy Richard Verma on Friday called for a dialogue with the Narendra Modi Government to discuss the recent clampdown on Greenpeace India and the Ford Foundation. "I think we should (have a dialogue). It is for Indian officials to raise their concerns and I certainly am raising my concerns with them," Verma told news channel CNN-IBN in an interview. The Government in April suspended NGO Greenpeace India's license and froze its accounts on the charge of working against the economic interest of the country.