New Delhi, Oct. 13 -- The implementation of the indigenous railway safety system Kavach 4.0 on two important corridors, Delhi to Howrah and Delhi to Mumbai, is in a "very advanced stage," Union Railway Minister Ashwini Vaishnaw said on Monday.

"Kavach is in a very advanced stage on two big corridors Delhi to Howrah (near Kolkata) and Delhi to Mumbai. Around 1,200 locomotives are installed already," Vaishnaw said while addressing the 41st Raising Day ceremony of the Railway Protection Force (RPF) in Valsad, Gujarat.

The system is being rolled out on both routes, covering nearly 3,000 route kilometres in total. According to the minister, tenders have been awarded and preparatory works, such as laying optical fibre cables and setting up te...