"Across the country, several organisations and crores of BJP workers are participating in various kinds of 'sewas' marking birthday celebrations of Modi ji," Shah said on the occasion.

He thanked these organisations which celebrated Modi's birthday as 'sewa divas' (day of service).

"On behalf of the party, I extend my best wishes on Modi ji's birthday and pray to the God for his long life and good health. All of us party workers believe that under Modi ji's leadership, the country is reaching new heights and we pray to the God that the country continues to get his leadership in future and he serves the nation for several more years," he said.

Earlier in the day the BJP chief tweeted, "I pray that PM Modi ji is blessed with abundant energy to bring country's poor, backwards and downtrodden to the mainstream of development. I join millions of countrymen in wishing Prime Minister Shri @narendramodi a very happy birthday."

The Prime Minister is celebrating his 66th birthday in his home state of Gujarat.