over as the residence of Jawaharlal Nehru (1889–1964), first Prime Minister of India. After his death in 1964, it was decided that Teen Murti Bhawan should be converted into a museum and a library which would promote original research in modern Indian history with special reference to the Nehruvian era. It was inaugurated on his birth anniversary, 14 November that year, by then President Sarvepalli Radhakrishnan. Nehru Memorial Museum and Library Society was formed on 1 April 1966. Initially, the museum was set up in the eastern wing and the library in the western wing of the sprawling building, with Bal Ram Nanda as its founder-director, who also curated the museum and library for next 17 years. He received the Padma Vibhushan in 2003. With the passage of time and the rapid growth of research material in the library, more space was required and an exclusive library building was constructed. It was formally inaugurated by President V. V. Giri in January 1974. However, the steady increase in the volume of material required for research further necessitated the construction of an annex building which was completed in 1989. The Centre for Contemporary Studies was set up in this building as a new unit in 1990. To commemorate the Foundation Day of the Nehru Memorial Museum and Library, it organises an annual lecture on 1 April, called the Jawaharlal Nehru Memorial Foundation Day Lecture. Nehru Planetarium is also part of NMML. Much work is also happening in the field of connecting people with this place with special reference to children, who are considered to be closest to Jawaharlal Nehru's heart, earning the popular name 'Chacha Nehru'. The library also has an archive of the private correspondence between Nehru and Edwina Mountbatten, wife of Lord Mountbatten, but with limited access. The Centre for Contemporary Studies was set up as an advanced studies unit of NMML in 1990 and is housed in the Annexe building. NMML took over the charge of the Nehru Planetarium from the Jawaharlal Nehru Memorial Fund in 2005. From April 2015 to March 2016, the Museum received nearly 1.7 million visitors. Nehru Memorial digital library The collection of manuscripts, historical documents and other archival materials of the Nehru Memorial Museum and Library were made available online, after the digitisation project, with the help of HCL Infosystems started in 2010. By May 2011, employing the Rs union Ministry of Culture funding