The US Director of National Intelligence Tulsi Gabbard, Canadian spy chief Daniel Rogers and Britain's MI6 boss Richard Moore will be among top global intelligence czars converging in India this weekend to attend a security conclave, people familiar with the matter said on Tuesday. India's National Security Advisor Ajit Doval is set to chair the India-hosted conclave on March 16 which is expected to deliberate on ways to enhance intelligence-sharing to combat terrorism and various transnational crimes. Intelligence chiefs of Australia, Germany, New Zealand and several other friendly countries of India are also expected to join the deliberations to be held in New Delhi. Gabbard is visiting India as part of a multi-nation tour of Japan, Thailand and France. It will be the first high-level visit to India by a top official of the Donald Trump administration. Besides attending the intelligence chiefs' conclave, Gabbard is likely to address the Raisina Dialogue and hold a one-on-one mee