National Security Advisor Ajit Doval Sunday met his counterparts from the US, Saudi Arabia and the United Arab Emirates to discuss an ambitious proposal being pushed by the White House to link West Asian countries through rail — using Indian expertise — and connect the region to South Asia via sea lanes. Sources in New Delhi said Doval has travelled to Saudi Arabia for Sunday’s meeting. The participants are expected to discuss the broad contours of the massive joint project to build railway, maritime and road connectivity in the larger region, linking the Indian subcontinent in South Asia with West…