Mr Palaniswami also challenged the opposition to name who their Prime Ministerial candidate would be.
Tamil Nadu Chief Minister K Palaniswami on Wednesday said only a strong and capable person like Prime Minister Narendra Modi can govern India, a democratic country with 130 crore population.
Addressing a public rally along with PM Modi, Union Ministers Piyush Goyal and Pon Radhakrishnan and leaders of allied parties like PMK founder S. Ramadoss and several others, Palaniswami said: "If we are all sitting safely, it is because of a strong Prime Minister ruling India.
"That is why parties like AIADMK, PMK, PT and others are supporting BJP."
Deputy Chief Minister O Panneerselvam, who was also present, said PM Modi and late Chief Minister and AIADMK leader J.Jayalalithaa shared a special bond.
Slamming the Congress-DMK combine, he said the nation did not benefit but only their families benefitted.
He also challenged the opposition to name who their Prime Ministerial candidate would be.