List of Metro Rail In India City State System Start of operations System Length (km) IO[c] UC[d] Planned[e] Kolkata West Bengal Kolkata Metro 30979 27.22 km 67.46 km 12.42 km Chennai Tamil Nadu Chennai MRTS 35004 19.34 km 4.5 km Delhi NCR Delhi Delhi Metro 37614 213 km 140 km[14] 103 km[15] Bengaluru […]