VIJAYAWADA: The Centre has informed that 31 railway projects, including 16 new lines and 15 doubling, covering a total length of 5,581 km and costing Rs 70,594 crore, falling fully or partly in Andhra Pradesh, are under different stages of either planning, approval or execution as on April 1, 2022. Out of the total works, 636 km length of track has been commissioned and an expenditure of Rs 19,414 crore has been incurred up to March, 2022.