13 cases of signalling failure in 5 years, but none due to defects in interlocking signal system: Railway minister Ashwini Vaishnaw

source https://timesofindia.indiatimes.com/india/13-cases-of-signalling-failure-in-5-years-but-none-due-to-defects-in-interlocking-signal-system-railway-minister-ashwini-vaishnaw/articleshow/102023978.cms