Officials from India and Bangladesh began a second day of talks Wednesday aimed at boosting trade and preventing insurgents and illegal migrants from crossing their long and porous border. Bangladeshi Foreign Secretary Hemayetuddin and his Indian counterpart, Shyam Saran, talked for seven hours in New Delhi on how to manage their poorly guarded frontier, which stretches 4,056 kilometers (2,535 miles). Indian Prime Minister Manmohan Singh is to visit Dhaka in November to attend a regional summit of South Asian leaders, The Associated Press reported.