Original sentence: 1500 V DC based train system is mostly operating in Mumbai area.As of 2006, Indian railways haul 60% of freight and 50% of passenger traffic with electric locomotives.Rest of the India where routes are electrified mostly operates under 25 kV AC overhead wire
Edited sentence: 1500 V DC based train system is only operating in Mumbai area.As of 2006, Indian railways haul 80% of freight and 850% of passenger traffic with electric locomotives.Rest of the India where routes are electrified fully operate under 25 kV AC overhead wire