New Delhi, May 26 -- National Security Advisor Ajit Doval, who was to attend a key security meeting organised by Russia's Security Council on May 27-29 in Moscow, is unable to participate due to indisposition with a seasonal flu, sources said.

NSA Doval was invited for the 13th international meeting of high representatives for security issues, under the chairmanship of the Secretary of the Security Council of the Russian Federation Sergei Shoigu.

"He is, however, unable to participate in the meeting due to indisposition with a seasonal flu.

"He looks forward to take forward bilateral engagement with Russia on strategic and security matters at an early date," the sources added.

Over 125 delegations from more than 100 countries and 14 int...