Narendra Modi

Context: In September 2013 Modi was named the BJP's candidate for prime minister in the 2014 Lok Sabha election. Several BJP leaders expressed opposition to Modi's candidature, including BJP founding member L. K. Advani, who cited concern with leaders who were "concerned with their personal agendas". Modi played a dominant role in the BJP's election campaign. Several people who voted for the BJP stated that if Modi had not been the prime-ministerial candidate, they would have voted for another party. The focus on Modi as an individual was unusual for a BJP election campaign. The election was described as a referendum on Narendra Modi.  During the campaign, Modi focused on the corruption scandals under the previous INC government, and played on his image as a politician who had created a high rate of GDP growth in Gujarat. Modi projected himself as a person who could bring about "development," without focus on any specific policies. His message found support among young Indians and among middle-class citizens. The BJP under Modi was able to downplay concerns about the protection of religious minorities and Modi's commitment to secularism, areas in which he had previously received criticism. Prior to the election Modi's image in the media had centered around his role in the 2002 Gujarat riots, but during the campaign the BJP was able to shift this to a focus on Modi's neoliberal ideology and the Gujarat model of development. Although the BJP avoided issues of Hindu nationalism to an extent, Hindutva remained a significant part of its campaign. The BJP's campaign was assisted by its wide influence in the media. Modi's campaign blitz cost approximately Rs50 billion (US$770 million), and received extensive financial support from corporate donors. In addition to more conventional campaign methods, Modi made extensive use of social media, and addressed more than 1000 rallies via hologram appearances.  The BJP won 31% of the vote, and more than doubled its tally in the Lok Sabha to 282, becoming the first party to win a majority of seats on its own since 1984. Voter dissatisfaction with the INC, as well as with regional parties in North India, was another reason for the success of the BJP, as was the support from the RSS. In states such as Uttar Pradesh in which the BJP performed well, it drew exceptionally high support from upper-caste Hindus, although the 10 percent of Muslim votes won was more than it had won before. It performed particularly well in parts of the country that had recently experienced violence between Hindus and Muslims. The magnitude of the BJP's victory led many commentators to say that the election constituted a political realignment away from progressive parties and towards the right-wing. Modi's tweet announcing his victory was described as being emblematic of the political realignment away from a secular, socialist state towards capitalism and Hindu cultural nationalism.  Modi himself was a candidate for the Lok Sabha in two constituencies: Varanasi and Vadodara. He won in both constituencies, defeating Aam Aadmi Party leader Arvind Kejriwal in Varanasi and Madhusudan Mistry of the INC in Vadodara by 570,128 votes. Modi, who was unanimously elected leader of the BJP, was appointed prime minister by India's president. To comply with the law that an MP cannot represent more than one constituency, he vacated the Vadodara seat. CANNOTANSWER

Question: What social media did Narendra Modi use while campaigning?
Answer: CANNOTANSWER