New Delhi, September 26, 2007 . Rajasthan Chief Minister Ms. Vasundhara Raje has congratulated to the Prime Minister Dr. Manmohan Singh on his 75th birthday. Ms. Raje expressing best wishes to Dr. Manmohan Singh in her felicitation message prayed for his long and healthy life and sent a multicolour bouquet to him at his official residence 7, Race Cource in New Delhi on Wednesday.