NEW DELHI - Indian Prime Minister Narendra Modi will travel to Afghanistan for the second time in six months this weekend, on a one-day visit to inaugurate a dam with Afghan President Ashraf Ghani, India's foreign ministry said Thursday. The dam, in western Herat district close to the Iran border, is one of two large projects carried out under India's development partnership with Afghanistan, worth more than $2 billion. "The completion of the Afghan-India friendship dam represents the culmination of years of hard work by around 1,500 Indian and Afghan engineers and other professionals in very difficult conditions," Vikas Swarup, foreign ministry spokesman told reporters of the Saturday visit.