The famed narrow-gauge line will run a vistadome-style coach on select services, railway officials said.

Travellers and traders on the route say the change could save hours and cut costs, particularly during the festival and tourist season.

What happens next

Analysts said the real test will be how quickly the plan moves from announcement to work on the ground.

Officials across the region said coordination between states will be key, with joint review meetings planned over the coming weeks.