Washington D.C., Mar 31 (ANI): India and the United States are working together on countering their shared threats on terrorism and cyber crime, said India's National Security Advisor Ajit Doval at the U.S. State Department. Referring to the forthcoming Fourth Nuclear Security Summit, Ajit Doval said that it’s a very important summit. Prime Minister Modi would be here. He is deeply interested in ensuring the safety of radioactive material. He added that they are very proud upon the strong relationship with United States.