http://timesofindia.indiatimes.com/india/High-speed-train-on-De
NEW DELHI: Railways today expressed optimism over progress in its plans to
run passenger trains on busy Delhi-Mumbai corridor at 200 km per hour and
launching for the first time train sets services on shorter routes.
"Japan is involved in the study of the high speed train on Delhi-Mumbai
route and things are progressing well," Mittal said here but did not give
any time frame for its implementation.