There is no such trains in Indian Railways which runs non stop upto 1000 km.
But yes There is 1 premium overnight train which runs non stop for 632 km i.e, 12276/New Delhi-Prayagraj Humsafar Express.
Many people are unaware of this train. It runs non-stop for 632 km, with only a technical halt at Tundla Junction, runs at an average speed of 81 kmph. Takes 7 hrs 50 min.
Recently Indian Railway operates 1 special fare Express train 09076/ Bandra Terminus-Jaipur special fare SF Express and it's speciality is, it is end to end service, no stops inbetween for 1147 km.
It takes 18 hours 5 min.
Though Technical Halt or crew change can happen despite running for long journey, many overtakes expected..as special fare Express train priority is less, so it's surprising thing for Railfans.
It started running on January 5, 2026 with the return service from Jaipur (Train No. 09705) starting on January 4, 2026, Operated as a special-fare, zero-halt (non-stop) superfast train to clear extra passenger rush
So as of now Bandra-Jaipur Special Fare Express is the train that runs above 1000 km non stop and higher speed, Whereas, the Prayagraj Humsafar Express is a permanent train service that operates nonstop for 632 km, just 368 km short of 1,000 km.