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The Delhi–Karnal Regional Rapid Transit System (Delhi–Karnal RRTS) is an approved, 135 km (84 mi) long, semi-high speed rail corridor connecting Delhi, Sonipat, Panipat, and Karnal in the National Capital Region. It is one of the three RapidX corridors planned under Phase-1 of the Rapid Rail Transport System of the National Capital Region Transport Corporation (NCRTC). With maximum speed of 160 km/h and average speed of 120 km/h, commuters using the system will be able to cover the distance between Karnal and Delhi in 45 minutes. The project is expected to cost ₹ 21,627 crores.
19 July 2017 - NHAI granted in-principle approval.
13 March 2020 - DPR approved by NCRTC Board.
18 January 2021 - Delhi Panipat RRTS corridor approved by Government of Haryana.
12 March 2021 - Process to identify Station land for extension to Karnal begins (3 more stations).
18 August 2021 - DPR lying with Central Government since Dec 2020.
14 Dec 2021 - Centre has not received the Delhi government's approval for its financial commitment with regard to DPR of the Delhi-Panipat RRTS.
8 Feb 2023 - Delhi Government not agreed to provide financial support for Delhi-Panipat RRTS and Delhi-SNB RRTS, and also hasn't made full payment for Delhi-Meerut RRTS.
17 Dec 2023 - Delhi government expressed its willingness to grant an in-principle/administrative approval for Delhi-Panipat RRTS project, provided its share of contribution was met by the Centre.
31 Dec 2023 - Delhi government releases 50 crores as initial fund for Delhi-Panipat RRTS.