NEW DELHI: The railway ministry informed Rajya Sabha on Friday that while the Ahmedabad-Mumbai bullet train project project is targeted for completion by December 2023, it will depend on several factors such as pace of land acquisition by state government, shifting of infringing utilities, law and order situation, statutory clearances, encountering unforeseen circumstances, litigation in courts, and climatic conditions.The project is being implemented by an SPV, namely National High Speed Rail Corporation Limited NHSRCL ). The entity has already invited tenders for certain sections of the project. Soon after coming to power in Maharashtra, the Uddhav Thackeray led coalition government had said that the state would “review the project”. The project is totally halted in the state.Meanwhile sources said it would be too early to say that the project may get delayed until the actual work starts. The current status of land acquisition is around 50% for this 508-km long high speed rail project.The ministry said currently, Mumbai-Ahmedabad is the only high speed rail project which has been sanctioned by the government and it is being executed with the technical and financial assistance from Government of Japan.In another reply, the ministry has said that a decision has been taken to undertake detailed project report (DPR) for six other corridors — Delhi-Varanasi, Delhi–Ahmedabad, Mumbai–Nagpur, Mumbai–Hyderabad, Chennai–Mysore and Delhi–Amritsar. “The alignment for these corridors have yet not been finalised, as the DPR study is in progress,” it said.