Haryana is the first state to achieve 100% electrification of its entire broad gauge ( approx 1701 km route) in March 2023, while multiple states and union territories has achieved this target, around 99.7% route electrified.
Some of the states such as Bihar, Gujarat, Himachal Pradesh, Chhattisgarh, Jharkhand, Madhya Pradesh Maharashtra, Odisha, Punjab, Rajasthan, Uttar Pradesh, Uttarakhand and West Bengal
North Eastern States:- Assam, Arunachal Pradesh, Meghalaya, Nagaland and Tripura
South Indian states:- Kerala, Andhra Pradesh, Telangana and Recently Tamilnadu also achieved this target.
Union territories such as Chandigarh, Jammu & Kashmir and Puducherry
Now remaining electrification route is 191 km Route Kilometres states pending such as Karnataka (120 km) Goa (16 km) and Mizoram (some wiring and traction substation pending)
Source :- Indian Railways nears 100% electrification: Only 191 Route Km left across 3 states