Vijayan took to Twitter to convey his birthday wishes and said that by standing in defence of federalism, secularism and our mother tongues, Stalin has won hearts across the country.

"Warmest birthday wishes to dear Comrade @mkstalin. Your efforts to strengthen Kerala - Tamil Nadu bonds are deeply appreciated. Standing in defence of federalism, secularism and our mother tongues, you've won hearts across the country. Wishing you happiness, health and success," he tweeted.

Stalin's birthday was celebrated by his party and supporters across Tamil Nadu with fervour.