The President ,Vice President and Prime Minister Dr Manmoham Singh have greeted the nation on the occassion Milad-Un-Nabi, the birthday of the Holy Prophet Mohammed being observed tomorrow.In her greetings, President Pratibha Devi Singh Patil expressed hope that the Prophet's message of universal brotherhood, compassion, tolerance and service to humanity will guide and inspire the people to follow the path of harmony. In his message Vice President Hamid Ansari said that Prophet's teachings of love, humanism, righteousness and tolerance continue to be a source of spiritual strength for all humanity. The Prime Minister in His message said that Prophet's life and work is an inspiration to lead a life of compassion and brotherhood.