To find the most accurate and up-to-date information about the visit of a specific nation's special presidential envoy for climate to India, I recommend checking reliable news sources, government announcements, or official statements from the involved countries' diplomatic channels. These sources will provide you with the latest information regarding diplomatic visits, including the schedule and purpose of such visits.

News agencies, government websites, and international climate forums such as the United Nations Framework Convention on Climate Change (UNFCCC) may also provide updates on high-level climate-related visits and engagements between nations.

By referring to trusted sources, you can stay informed about the latest developments in international climate diplomacy and the specific visits of special envoys for climate change to India or any other country.