Prime Minister Manmohan Singh during the inauguration of '98th Indian Science Congress' at SRM University in Chennai

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Prime Minister Manmohan Singh during the inauguration of '98th Indian Science Congress' at SRM University in Chennai. (PTI/R Senthil Kumar)

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Prime Minister Manmohan Singh arrives at the inauguration of '98th Indian Science Congress' at SRM University in Chennai on Monday. (PTI/R Senthil Kumar)

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Prime Minister Manmohan Singh releases a publication as HRD Minister Kapil Sibal applauds during the inauguration of '98th Indian Science Congress' at SRM University in Chennai. (PTI/R Senthil Kumar)

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Prime Minister Manmohan Singh and Tamil Nadu Deputy Chief Minister MK Stalin after release of a book during the inauguration of '98th Indian Science Congress' at SRM University in Chennai. (PTI/R Senthil Kumar)