Analysis of information sources in references of the Wikipedia article "அ. தா. பன்னீர்செல்வம்" in Tamil language version.
{{cite web}}: CS1 maint: date format (link)At this critical movement, two of the old guards staunchly stood by [Periyar]. They were Sir R.K.Shanmugam and Sir A.T. Panneerselvam. At the time, the former was the Dewan of the Princely State of Kochi (now a part of Kerala) and then became Independent India's first finance minister in 1947. The latter was a member of the Governor's council and then a minister in Madras province in 1930s. On 1st March 1940, he lost his life in a plane crash while flying over Oman sea on his way to London where he was to assume office as an adviser to the Secretary of State for India in the British Government. Periyar lamented that the sudden and tragic demise of Panneerselvam was an irreparable loss to the people of Tamil Nadu.
{{cite web}}: CS1 maint: date format (link)