New Delhi, Dec 25 (ANI): Prime Minister Narendra Modi on Thursday greeted the former Prime Minister Atal Bihari Vajpayee on his 90th birthday. Prime Minister Modi took to twitter for extending his greetings. "Warm birthday wishes to our one and only Atal ji," tweeted Prime Minister Modi. "There is no bigger tribute to Atal ji than celebrating his birthday as 'Good Governance Day' and pledging to devote ourselves to this cause," he added. "Development and good governance are the only ways ahead. Together, let us make a positive impact in people's lives and create a developed India," he said in a series of tweets. Atal Bihari Vajpayee served as the eleventh Prime Minister, first for 13 days in 1996 and then from 1998 to 2004.