New Delhi, June 23: India on Tuesday welcomed the Memorandum of Understanding (MoU) between the United States and Iran, with National Security Adviser (NDA) Ajit Doval expressing "cautious optimism" over the agreement and its potential impact on regional stability, energy security, and global trade. Speaking at the 16th BRICS National Security Advisers' Meeting, Doval said, "India welcomes the MOU reached between the US and Iran. We have got cautious optimism, and we hope that it will work.