Project Unigauge

Project Unigauge, started on 1 April 1992, is an ongoing effort by Indian Railways to convert and unify almost all rail gauges in India to broad gauge.

Progress

+YearGaugeBroad gauge (BG) ()Metre gauge (MG) ()Narrow gauges (NG) ( and )All gaugesRoute kmRoute shareRoute kmRoute shareRoute kmRoute shareRoute km194725,17046.14%24,15344.28%5,2259.58%54,5481971 (Mar)29,44949.25%25,86543.26%4,4767.49%59,7901972 (Mar)30,04150.01%25,55042.54%4,4767.45%60,0671973 (Mar)30,12650.09%25,54742.47%4,4767.44%60,1491974 (Mar)30,21050.15%25,54842.41%4,4767.43%60,2341975 (Mar)30,27450.20%25,55142.37%4,4767.42%60,3011976 (Mar)30,49750.65%25,42742.23%4,2927.13%60,2161977 (Mar)30,87350.89%25,51242.05%4,2817.06%60,6661978 (Mar)30,90950.93%25,50342.02%4,2817.05%60,6931979 (Mar)31,13051.22%25,36641.74%4,2817.04%60,7771980 (Mar)31,22851.25%25,42441.72%4,2817.03%60,9331981 (Mar)31,82751.97%25,16741.10%4,2466.93%61,2401982 (Mar)32,29052.74%24,69440.33%4,2466.93%61,2301983 (Mar)32,62453.15%24,51539.94%4,2466.92%61,3851984 (Mar)32,70053.21%24,51439.89%4,2466.91%61,4601985 (Mar)33,55354.25%24,05138.89%4,2466.86%61,8501986 (Mar)33,66954.45%23,92138.68%4,2466.87%61,8361987 (Mar)33,66554.46%23,90138.67%4,2476.87%61,8131988 (Mar)33,83254.59%23,89838.56%4,2466.85%61,9761989 (Mar)34,10855.03%23,63138.12%4,2466.85%61,9851990 (Mar)34,54455.53%23,59937.93%4,0686.54%62,2111991 (Mar)34,88055.93%23,41937.55%4,0686.52%62,3671992 (Mar)35,10956.21%23,28337.28%4,0666.51%62,4581993 (Mar)36,50458.42%21,99735.20%3,9856.38%62,4861994 (Mar)37,82460.56%20,65333.06%3,9856.38%62,4621995 (Mar)39,61263.22%19,21030.66%3,8386.13%62,6601996 (Mar)40,62064.56%18,50129.41%3,7946.03%62,9151997 (Mar)41,97166.91%17,04427.17%3,7105.91%62,7251998 (Mar)43,08368.94%15,80425.29%3,6085.77%62,4951999 (Mar)44,21670.40%15,17824.17%3,4155.44%62,8092000 (Mar)44,38370.72%15,01323.92%3,3635.36%62,7592001 (Mar)44,77671.04%14,98723.78%3,2655.18%63,0282002 (Mar)45,09971.43%14,77623.40%3,2655.17%63,1402003 (Mar)45,62272.28%14,36422.76%3,1364.97%63,1222004 (Mar)46,80774.04%13,29021.02%3,1244.94%63,2212005 (Mar)47,74975.24%12,66219.95%2,9244.81%63,4652006 (Mar)48,57476.70%11,83418.69%2,9244.62%63,3322007 (Mar)49,82078.67%10,62116.77%2,8864.56%63,3272008 (Mar)51,08280.73%9,44214.92%2,7494.34%63,2732009 (Mar)52,80882.49%8,47313.24%2,7344.27%64,0152010 (Mar)54,25784.81%7,18011.22%2,5373.97%63,9742011 (Mar)55,18885.62%6,80910.56%2,4633.82%64,4602012 (Mar)55,95686.62%6,3479.83%2,2973.56%64,6002013 (Mar)57,14087.32%5,9999.17%2,2973.51%65,4362014 (Mar)58,17788.40%5,3348.11%2,2973.49%65,8082015 (Mar)58,82589.09%4,9087.43%2,2973.48%66,0302016 (Mar)60,51090.74%3,8805.82%2,2973.44%66,6872017 (Mar)61,68091.56%3,4795.16%2,2093.28%67,3682018 (Mar)62,04992.70%3,2014.78%1,6852.52%66,9352019 (Mar)62,89193.29%2,8394.21%1,6852.50%67,4152020 (Mar)63,95094.10%2,4023.54%1,6042.36%67,9562021 (Mar)64,40394.57%2,1123.10%1,5882.33%68,1032022 (Mar)65,09395.67%1,6552.43%1,2941.90%68,0432023 (Mar)65,97796.20%1,3451.96%1,2621.84%68,5842024 (Mar)66,82096.59%1,1591.68%1,2021.74%69,1812025 (Mar)67,37297.02%8941.29%1,1731.69%69,439

Heritage railway lines excluded from conversion

These lines have their original gauge preserved as these are identified as heritage railways. Some of these are also among the UNESCO World Heritage Sites in India.

Nilgiri Mountain Railway (Meter Gauge - 1000 mm) Patalpani–Kalakund section (Meter Gauge - 1000 mm) Mailani–Nanpara section (Meter Gauge - 1000 mm) Kalka–Shimla Railway (Narrow Gauge - 762 mm) Kangra Valley Railway (Narrow Gauge - 762 mm) Bilimora–Waghai section (Narrow Gauge - 762 mm) Darjeeling Himalayan Railway (Narrow Gauge - 610 mm) Matheran Hill Railway (Narrow Gauge - 610 mm)

Project Unigauge

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