"Dear SrBachchan (Amitabh Bachchan), wishing you a very happy birthday. Your versatility and humility has many admirers. Praying for your long and healthy life," Modi tweeted.
Bachchan was honoured with the Padma Vibhushan, the country's highest civilian honour in 2015, and Knight of the Legion of Honour by France in 2007 for his exceptional career in the world of cinema.
Bachchan has starred in superhit films like "Deewar", "Zanjeer", "Sholay", "Don", "Black", "Sarkar", "Agneepath", "Paa" and "Piku" in his illustrious career.