The line connects Kashmere Gate station in New Delhi with Raja Nahar Singh in Ballabhgarh via Faridabad.

[2] The line consists of 34 metro stations with a total length of 46.34 kilometres (28.79 mi).

[5]: 16  The line will be extended further in the coming future up to the upcoming Noida International Airport in Jewar via Palwal.

[8] An extension from the Badarpur metro station of the line was opened on 6 September 2015 to provide connectivity to the neighbouring satellite city of Faridabad.

[9] A further extension to Ballabhgarh (Raja Nahar Singh metro station) was opened on 19 November 2018.