epts. are ISO 9000 certified. Diesel shed, Tughlaqabad has the distinction of being the first diesel shed to get ISO 14000 certification on Indian Railway.
There are eight workshops operated by Northern Railways
|Locomotive Workshop||Charbagh Railway Station, Lucknow||Uttar Pradesh|
|Carriage & Wagon Workshop||Alambagh, Lucknow||Uttar Pradesh|
|Carriage & Wagon Workshop||Yamunanagar-Jagadhari Railway Station, Yamunanagar||Haryana|
|Carriage & Wagon Workshop||Kalka||Haryana|
|Bridge Workshop||Jalandhar Cantonment||Punjab|
|Bridge Workshop||Lucknow||Uttar Pradesh|
|Signal & Telecom Workshop||Ghaziabad||Uttar Pradesh|
Zonal Railway Training Institute (ZRTI) at Chandausi, Moradabad UP is the oldest (and North India's only) Railway Training Institute, where group C railway employees like Driver, Guard, Ticket Checker, Station Master, Traffic Inspector, Commercial Inspector, JE (signal & Telecom) etc. are trained for initial, promotional and refresher courses. ZRTI is an ISO 9001 Institute. Applicants pass All India Railway Examinations to get admission into the institute. ZRTI is headed by a senior Civil Services Officer.
Northern Railways is one of nine old zones of Indian Railways and also the biggest in terms of network having 6807 kilometre route. It covers the states of Jammu and Kashmir, Punjab, Haryana, Himachal Pradesh, Uttarakhand and Uttar Pradesh and the Union territories of Delhi and Chandigarh.
Northern Railways implemented the Route Relay Interlocked system (RRI) at New Delhi Railway Station which is a modern signaling system for enhancing efficiency and safety in the operations. This Route Relay Interlocked system at New Delhi is one of the world's largest route relay interlocking system certified by the Guinness Book of Records. Northern Railway is equipped with 40 Route Relay Interlocking systems including the system at Delhi Main.
Delhi Suburban Railway services is a commuter rail service operated by Northern Railway. It covers the city state of Delhi, along with the adjoining districts of Faridabad, Ghaziabad and other adjoining places in Haryana and Uttar Pradesh. These services are mostly run using EMU and MEMU rakes. In 2009 Ladies Special trains were introduced between New Delhi and Palwal. Two more ladies special trains will be connecting from the city to Ghaziabad and Panipat.
Starting with a part of Firozpur division of the Northern Railway zone, the line has been under construction since 1983; the Jammu Udhampur Srinagar Baramulla Railway Link (JUSBRL) of the Kashmir Railway is under construction in perhaps the most difficult terrain on the Indian subcontinent. The Northern Railway reached another landmark achievement by extending rail services in the Kashmir Valley on 28 October 2009 by commencing rail services between Anantnag and Qazigund of the Qazigund-Baramula rail project. Pir Panjal Railway Tunnel, the 10.96 km long railway tunnel, passes through the Pir Panjal Range of middle Himalayas in Jammu and Kashmir. It is a part of its Udhampur–Srinagar–Baramulla rail link project, opened in October 2011, India's longest and Asia's second longest railway tunnel and reduced the distance between Quazigund and Banihal to only 11 km .
Northern Railways in keeping the objective to achieve the target under National Solar Mission to maximize the use of solar power selected Vivaan Solar, a Gwalior based company to install a total of 5 MW rooftop solar power project in 4 major railway stations of NCR namely Anand Vihar, New Delhi, Old Delhi and Hazrat Nizamuddin respectively. The Public Private Partnership to install rooftop solar project was signed in late 2016. The solar power project is to be executed on design, build, finance, operate and transfer (DBFOT) basis and expected to be operational by August 2017. The company will also be responsible for maintaining the respective solar power plants with break up of 1.1 MW, 1.1 MW, 2.2 MW, and 0.6 MW respectively for a period of 25 years. 
- Asiatradehub.com.com. "India – Infrastructure Railways".
- Northern Railway Carriage and wagon Workshop Lucknow
- ilovein