Are there any restrictions for the traveller while crossing into Nepal?
The trek to Sandakphu takes place in the Singalila National Park located in West Bengal and Ilam, Nepal. This trek requires you to cross the Indo-Nepal border into Nepal, but the border is nominal with no restrictions to Indians. So you don’t have to worry about crossing into Nepal. If you’re a foreigner traveler with an Indian visa, then even you will face no hindrance.