Prime Minister Narendra Modi on Monday took to Twitter to thank all those who watched his swearing-in ceremony. Modi tweeted his thanks over an hour before the ceremony at Rashtrapati Bhavan where he was sworn in as the 15th Prime Minister of India. "I am glad & honoured that people from all walks of life will join the swearing in ceremony. I welcome them. "A big thank you to all friends who will be viewing the ceremony on TV and through social media. Your constant support & blessings mean a lot," he said in a tweet. He also made a mention of singing great Lata Mangeshkar, who could not attend the event due to poor health but sent him her best wishes in the form of a hand-written letter. "Thank you Lata Didi. As always, your greetings and best wishes inspire me deeply," he said.