The Edavaka Mission (Parish Mission) plays a central role in the spiritual enrichment and outreach efforts of the Malankara Mar Thoma Syrian Church. It operates globally under the Mar Thoma Voluntary Evangelistic Association (MTVEA), which was established in 1924. Rooted in the vision that "Every Mar Thomite is a voluntary evangelist," the central organization operates with the primary goal of bearing witness to Jesus Christ to the world. It provides a structured framework for lay members to actively participate in the church's evangelistic and charitable ministries, ensuring that the call to share the Gospel and serve others is deeply ingrained in parish life.

In Canada, local branches like the Canadian Mar Thoma Church (CMTC) Edavaka Mission operate under the Diocese of North America and Europe to adapt this mission to the realities of the diaspora. These groups tailor the traditions of the MTVEA to fit a Western context, providing a crucial space for adult spiritual growth, fellowship, and leadership. By integrating Mar Thoma church traditions with local community outreach, the Canadian parish missions help Indo-Canadian families stay deeply rooted in their Eastern Reformed heritage while actively living out their faith in their local neighbourhoods.

The Edavaka Mission acts as the spiritual engine of the local church, organizing a vibrant schedule of regular activities and major events. Weekly routines typically feature evening prayer fellowships, rigorous Bible studies, and intercessory prayer sessions often hosted in members' homes. Beyond these core meetings, the mission drives the parish’s broader outreach by organizing annual gospel conventions, supporting global mission fields, and leading charitable initiatives, including visiting the sick and assisting local community programs. Ultimately, the Edavaka Mission empowers lay members to work alongside the vicar, fostering a deeply connected and spiritually active parish community.