NEW DELHI: Signalling that India would go for more bullet train projects in the near future, PM Narendra Modi has asked engineers working on the Mumbai-Ahmedabad high-speed train corridor to document their experiences as it could prove useful in planning and executing similar projects elsewhere.“If your experiences are recorded, and a kind of ‘blue book’ is prepared, it will help the country a lot as we move towards building more bullet trains. We wouldn’t want everyone to start from scratch each time. The learnings from here should be replicated elsewhere,” the PM said in response to an observation by Shruti, a lead engineering manager in the country’s first bullet train project, during an interaction with those involved in its construction in Surat on Saturday.Modi said replication is only possible when there is knowledge of why a particular method is used; otherwise people will simply copy without understanding. “If you maintain such a record, it will also help students in the future. You will dedicate your life here, and leave something valuable for the nation,” he said. Govt on Sunday released the video and details of the PM’s interaction. TOI has learnt that a few weeks back, the PM had taken a meeting on other proposed bullet train corridors, in which top railway officers had made presentations.