统一轨距计划，于1990年4月1日开始，是印度铁路轨距转换的持续努力，并将印度的所有轨距统一为宽轨。

发展

未开始换轨

North Western Railway 

  – Marwar  (MG)

Western Railway 

  –  –   (MG)
  –   (MG)
  –   (MG)
  –  –   (MG)
  –   (MG)
  –   (NG)
  –   (NG)
  –   (NG)
  –   (NG)

North Eastern Railway 

 Nanpara – Nepalganj Road  (MG)
 Nanpara – Bahraich  (MG)
 Nanpara –  –  (MG)

North Central Railway 

 Dhaulpur –  – Sirmuttra  (NG)
  – Tantpur  (NG)

正在换轨

Eastern Railway 

 Nabadwip Ghat –   (NG)

Western Railway 

  – Adraj Moti  (MG)
  –  – Kavi Port  (NG)
  –  –  –   (MG)
  – Jasdan  (MG)
 Timba Road – Dabhoi  (NG) 
  –   (MG)
  – Taranga Hill  (MG)
  –   (MG)
  – Khedbrahma  (MG)
 Shapur – Saradiya  (MG)
 Khalipur Junction – Kakoshi Metrana Road  (MG)
 Chanasma Junction – Harij  (MG)

Central Railway 

  – Yavatmal 
  –   (NG)
  –   (NG)
  – Arvi  (NG)

East Central Railway 

  –  –   (MG)
 Jhanjharpur –   (MG)
 Lalitgram – Forbesganj  (MG)

North Central Railway 

  –   (NG)

North Eastern Railway 

  – Jarwa  in UP (MG)
 Shahgarh – Pilibhit Junction  (MG)
 Dohrighat –   (MG)

North Western Railway 

  –  (MG)

Northeast Frontier Railway 

 Simaluguri – Naginimora  (MG)
 Chalsa – Metelli  (MG)
  –  (MG)

South Central Railway 

  –  (130.66 km) (MG)

South East Central Railway 

  –  – Kendri  (NG)
 Itwari Junction – Nagbhir Junction  (NG)
  –   (NG)

Southern Railway 

  – Tarangambadi  (MG)
  – Kodiyakkarai  (MG)
  –  (MG) 
  –  (MG)
  –  (MG)

换轨完成 

  –  in Bihar/Nepal
  – Bari Sadri in Rajasthan
 Tamuria –  in Bihar
  – Bihariganj in Bihar
  –  in Rajasthan
  –  in Madhya Pradesh
  –  in Gujarat
  –  in Tamilnadu
 Dabhoi –  in Gujarat
  –  in Gujarat
 Walaja Road Junction – Ranippettai in Tamil Nadu
  –  in Madhya Pradesh
  –  in Gujarat
  –  in Madhya Pradesh
  – Varetha in Gujarat
  – Shahbaznagar in Uttar pradesh 
  –  in Bihar
  –  in UP
  –  in Gujarat/Rajasthan
  –  in Madhya Pradesh
  –  in Tamil Nadu
  – Bisalpur in Uttar Pradesh
  –  in Rajasthan
 Supaul –  in Bihar
  –  in Gujarat
  –  in Maharastra
  – Chandod in Gujarat
  –  in Madhya Pradesh
  –  in Madhya Pradesh
 Bisalpur –  in Uttar Pradesh
  –  in Gujarat
  –  in Tamil Nadu
  –  in Maharashtra/MP
  –  –  in UP
  –  in UP
  – Supaul in Bihar
 Banmankhi –  in Bihar
 Sakri – Jhanjharpur in Bihar
  –  –  in Gujarat
  –  in Tamil Nadu
  –  in Rajasthan
  –  in Gujarat
  –  in Madhya Pradesh
  –  in Gujarat
  –  in Madhya Pradesh
  –  in West Bengal
  –  in Rajasthan
  –  in Tamil Nadu
 Majhola Pakarya –  in Uttar Pradesh/Uttarakhand
  –  in Madhya Pradesh
  –  in West Bengal
  –  in Kerala 
  –  in Uttar Pradesh
  –  in Bihar
  –  in Tamil Nadu
  –  in Gujarat
  –  in Uttar Pradesh
  –  in Kerala
  –  in Tamil Nadu/Kerala
  – Sardarshahar in Rajasthan
  –  in Tamil Nadu
 Baraigram Junction –  in Assam
  –  in Rajasthan
  –  in Madhya Pradesh
  –  in Madhya Pradesh
  – Majhola Pakarya in Uttar Pradesh
  –  in Assam/Tripura
  –  in Assam/Manipur
  –  in Assam/Mizoram
  –  in Madhya Pradesh
  –  in Rajasthan
 Banmankhi –  in Bihar (36 km)
 Thawe –  in Bihar
 Kotturu – Gunda Road in Karnataka
  –  in Madhya Pradesh
  – 
  –  
  –  in Assam
 Balipara –  in Assam
  –  in Assam
  –  in Tamil Nadu/Kerala
  –  in Rajasthan
  –  in Uttar Pradesh
  – Chauradano in Bihar
  –  in Tamil Nadu
  –  in Madhya Pradesh
  –  in Gujarat
  –  in Uttar Pradesh
  –  in Assam
 Dauram Madhepura – Banmankhi in Bihar
  –  – Harmuti Junction in Assam
  –  in Madhya Pradesh
  –  in Tamil Nadu
 Kolar – Chikkaballapur in Karnataka
  –  in Uttar Pradesh
  –  in Tamil Nadu
  –  in West Bengal
  – Bairgania in Bihar
  – Thawe in Uttar Pradesh
  –  in Bihar
  –  in Rajasthan
  – Talguppa in Karnataka
  –  in Tamil Nadu
  –  in Tamil Nadu
 Bodeli –  in Gujarat
  –  in West Bengal
  –  in Uttar Pradesh
  –  in West Bengal
  – 
  –  –  in Gujarat
  –  in Odisha
  –  in Uttar Pradesh
  – Manihari in Bihar
 Shimoga –  in Karnataka
  –  –  in Karnataka
  –  in Karnataka
  –  in Karnataka
 Sakleshpur –  in Karnataka
  –  –  in Rajasthan
  –  in Rajasthan
  –  in Andhra Pradesh
  –  in Tamil Nadu
  –  –  in Rajasthan/Haryana
  – Kalluru in Andhra Pradesh
  –  in Uttar Pradesh
  –  in Maharastra
  –  in Uttar Pradesh

废弃的线路 
拆除了几条线路。这些都是：

 
  – Lunavada  (NG)
  – Pani Mines  (NG)
  – Velavadar  (MG). 
 Victor – Dungar Junction  (MG)
 Than – Chotila  (MG)
  – Toda Rai Singh  (MG). 
  – Chandan Chauki  (MG)
  – Gauri Phanta  (MG)

保留的原轨距（不会被换轨） 

  –   (NG)
  –  –   (NG)
  –   (NG)
  –   (NG)

参见 
 轨距转换列表

参考 

History of rail transport in India