China promised railway network in Nepal as well but so far its on paper only on the other hand india has started laying railway tracks in nepal already
India is also making railway lines and opertionalizing waterways in Bangladesh
Let's me state some facts that your neglected to tell us about the railway line from India to Nepal, which opened in April this year.
- It ended in Kurtha, Napal, about 10 miles from the Indian border and over 100 miles from Nepal's capital city Kathmandu.
- It is a narrow gauge line with max speed of 100 km/h for passenger train and 65 km/h for freight.
- It will not support HSR.
- It runs on open plain so there is no technical challenge to overcome and per km cost is low. Several proposed extensions of the line all run along the planar areas of Nepal close to the Indian border.
- To reach Kathmandu, it will have to go into the mountain region with significant engineering challenges and far more expensive to build.
On the India-Bangladesh line, is it HSR capable like Laos ? If not, then your assertion that India HSR can one day reach Singapore and Beijing is just a wet dream.