The statement that "monsoon winds across the Bay of Bengal facilitated sea voyages" is correct as it highlights the role of seasonal wind patterns in ancient maritime trade. The predictable nature of the southwest and northeast monsoon winds allowed sailors to navigate the waters efficiently, enabling regular trade links between India and Southeast Asia. This had a profound impact on cultural exchange, promoting the spread of Indian religions, languages, and goods, and fostering significant socio-economic interactions across these regions, which is often covered in standard UPSC preparation materials related to early Indian maritime history.