The line's name comes from the fact that it will provide a railway facility to pilgrims visiting the Sabarimala Temple (which number more than the total population of Kerala).
The Sabari Railway project has been included under PRAGATI (PM-Proactive Government and Timely Implementation) and is monitored by the Prime Minister's Office.
The proposed railway line will relieve transportation problems in Idukki, Kottayam, and Pathanamthitta districts.
The government has started land acquisition, and established special Thahasildhar offices at Perumbavoor and Palai in 2006 and at Muvattupuzha in 2010 for the process.
Government of India has sanctioned the project in 1997-98 railway budget as item no.7 of pink book with total cost of Rs.
Railway board vide letter number 93/W1/Survey /SR/11 dated 7/1/2004 has informed the decision to terminate the project at Azhutha short of reserve forest due to the objections raised by Ministry of Environment.
Government of Kerala has published notification for the acquisition of land for the construction of Angamali -Sabarimala railway line project on 2005.
Government of Kerala has started Special Thahasildhar offices at Perumbavoor and Pala to acquire land for the project on 2006 7.
Government of Kerala has included the Angamali - Sabari railway land acquisition on fast track vide G.O.
Meeting conducted by Minister of state for railway with MPs on 7/12/2010 has decided to terminate the project at Erumeli instead of Azhutha on the bases of the recommendation of EIAS 9.
Revenue Department, Government of Kerala has completed the Social Impact Assessment (SIA)Study to acquire land for Angamali-Sabarimala railway line project in Kunnathunad taluk during March 2019.
Even though draft Social Impact Assessment Study report of Angamali-Sabarimala railway line for Muvattupuzha and Kothamangalam taluk is prepared in 2020, hearing for the land owners and elected representative of the project is yet to be conducted.
93/W1/Survey/SR/11 dated 19.02.2021 advised Kerala Rail Development Corporation Limited (KRDCL) to prepare the revised detailed estimate for the Project.
The inclusion of Nedumangad Municipality in the list has increased the chance for expansion of the Sabari railway to Thiruvananthapuram.
Railway Board has instructed KRDCL to update the revised detailed estimate with the capacity for Vandebharat train service.
Southern railway wide letter dated 6/11/2023 the Chief Administrative Officer- finance has approved the revised estimate (amounting Rs.