Today,is the day of our former Prime Minister Manmohan Singh,who served as a PM from 2004 to 2014.On this occasion the present Prime Minister of India-Narendra Modi greeted him for a long and healthy life. As per Modi’s tweet, “Warm birthday wishes to Dr. Manmohan Singh ji. May God bless him with a long and healthy life," "PM @narendramodi spoke to Dr. Manmohan Singh ji and extended birthday greetings to him," the PMO said in a tweet.