Moopanar was a close associate of Congress leader and former Tamil Nadu Chief Minister, K.

[3] Moopanar was born on 19 August 1931 at Kabisthalam village in the composite Thanjavur district, the rice granary of Tamil Nadu.

He also shunned the Prime Minister’s post offered to him in April 1997 after the fall of the United Front government led by H.D.

In a volume titled Makkal Thalaivar Moopanar, published by a TMC leader in August 2000, former Union Minister R. Dhanuskodi Athithan has recalled that CPI(M) general secretary Harkishan Singh Surjeet declared that "Mr. Moopanar is the best and first choice" for the prime ministership.

The party quickly tried to steady itself when at a meeting of its legislators, Rajya Sabha members and leaders on 1 September, Moopanar’s son G.K. Vasan was elected TMC president.

After the demise of Moopanar, under the new leadership of his son G K Vasan, the TMC merged back with the Congress led by Sonia Gandhi.