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Indian Prime Minister, Dr Manmohan Singh unveiling the plaque at the 150th Anniversary celebrations of Archaeological Survey of India, in New Delhi on December 20, 2011. Union Minister for Housing and Urban Poverty Alleviation and Culture, Kumari Selja, Union Minister for Human Resource Development and Communications and Information Technology, Kapil Sibal and the Secretary, Ministry of Culture, Jawhar Sircar are also seen. Photo Credit: Indian Photo Agency