In its communication, TANGEDCO highlighted the renewal of the EC and CRZ clearance obtained for the interlinked project of Captive Coal Jetty and pipe conveyor system in August 2022, following the expiration of the ten-year period stipulated by the Environment Impact Assessment notification 2006. The EC renewal involved conducting Rapid Marine and Terrestrial EIA/EMP studies by an accredited consultant from June to November 2021. As the marine baseline data's validity extends for three years, TANGEDCO proposed the continued use of existing marine baseline data in the EIA/EMP study for the power project.

Initially conceptualised as a joint venture between TANGEDCO and BHEL, the Udangudi project later transitioned into a state sector project. Delays arose during the bidding process initiated in July 2013, leading to a legal challenge by one of the bidders, subsequently addressed by the Madras High Court. Ultimately, the Engineering, Procurement, and Construction Contract was awarded to BHEL in December 2017 following the court's ruling. ITD Cementation India Ltd was tasked with establishing a captive coal jetty and pipe conveyor system for the Udangudi project in February 2018, but execution faced setbacks due to cyclones and the Covid-19 pandemic.