On the eve of Pakistan, India trade talks, New Delhi on Tuesday said possible doables to upgrade bilateral economic engagement would be clear after the Commerce Secretaries complete their discussion in Islamabad. Describing the India-Pakistan Commerce Secretaries talks, beginning on Wednesday, as a positive development, Commerce and Industry Minister Anand Sharma told reporters in New Delhi that, after these talks, there would be greater clarity about possible doables on ways to upgrade economic ties. Commerce Secretary Rahul Khullar has reached Pakistan on Tuesday for talks with his Pakistani counterpart Zafar Mehmood. Mr. Sharma said India is of the view that SAFTA (South Asia Free Trade Area) Agreement for opening the mutual markets should be implemented fully.