https://timesofindia.indiatimes.com/city/delhi/delhi-meerut-rrts-1-5-km-long-tunnel-from-anand-vihar-to-new-ashok-nagar-built/articleshow/94517307.cms
Two 'Sudarshan' tunnel boring machines are in operation to construct two three-km-long parallel tunnels from Anand Vihar station towards New Ashok Nag
https://timesofindia.indiatimes.com/city/delhi/delhi-meerut-rrts-1-5-km-long-tunnel-from-anand-vihar-to-new-ashok-nagar-built/articleshow/94517307.cms
Delhi-Meerut RRTS: 1.5-km-long tunnel from Anand Vihar to New Ashok Nagar built | Delhi News - Times of India
timesofindia.indiatimes.comTwo 'Sudarshan' tunnel boring machines are in operation to construct two three-km-long parallel tunnels from Anand Vihar station towards New Ashok Nag