In a string of tweets, Rajinikanth first thanked Modi, saying "My heartfelt thanks to you dear @narendramodi ji, for your thoughtful birthday wishes amidst your busy schedule, Warm regards."

"Here's thanking @srbachchan ji, Kamal Hassan, my entire film fraternity and all my dear friends for the birthday wishes," he wrote on his Twitter handle.

"To the ones who mean everything to me... MY FANS... from all over the world who wished me today...THANK YOU #touched. God bless," he added.

Earlier on Friday, Modi took to Twitter to reach out to the cinema czar on the day his film 'Lingaa' also hit the screen.

"On his birthday, I extend greetings to the legendary Rajinikanth ji. May he remain in the best of health and have a long life. @superstarrajini," Modi tweeted.

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