Jaipur, April 21 -- The loco pilots of the Ajmer-Sabarmati Express whose four coaches derailed on March 18 near Madar railway station in Rajasthan ignored the red signal, said officials, adding that a report was submitted to the GRPF on Saturday for further action. "A five-member committee led by principal railways security officer R S Ranawat submitted a report to GRPF on Saturday after conducting a thorough investigation by speaking to over 300 witnesses," said Sashi Kiran, the spokesperson of the North Western railways....