March 2021 - Line doubling completed for Thirumangalam to Thulukkapatti section as part of project; September 2020 - Work has resumed; March 2020 - Rail Vikas Nigam Limited has suspended the Vanchi Maniyachi-Nagercoil railway track doubling work due to Covid-19 lockdown; February 2019 - INR1.83bn (USD25.7mn) allocated for project under FY2019-20 budget; January 2018 - Foundation stone laid; August 2017 - Cabinet Committee on Economic Affairs has approved construction of double line with electrification between Vanchi-Maniyachchi- Nagercoil via Tirunelveli; Project Value - INR10.04bn