PK Raghu Varma, having retired as the Additional Secretary of the Secretariat Finance Department in 2008, dedicated a significant portion of his career to public service. During his tenure, he served as the State Treasurer of 'Thapasya' for four years, from 1990 to 1994, contributing to the organization's financial management and stability.

In addition to his professional commitments, PK Raghu Varma was actively involved in cultural and social activities. He served as the Convenor of 'Samskarika Theertha Yatra,' organizing and facilitating cultural pilgrimages. Furthermore, he held the position of District General Secretary of 'Thapasya' in Thiruvananthapuram, demonstrating his commitment to community engagement and artistic initiatives at the local level. PK Raghu Varma's dedication to public service and cultural endeavors impacted those he served and inspired.