The Railway Board has rejected the Delhi-Varanasi bullet train feasibility report in a review meeting that took place last week, officials said.
They added that the high-speed train will be unable to run at 350 kmph due to the multiple curves on the route between Delhi and Varanasi.
Another official added that the detailed project report (DPR) is awaited.
The feasibility study report was presented by the National High Speed Rail Corporation Limited (NHSRCL).
The feasibility report proposed the corridor be built along the National Highway-2. It said this will help in the acquisition of land at cheaper rates and reducing the cost of construction.