UPSC Mains PYQs: Science & Technology
Every UPSC Mains previous year question on Science & Technology, across GS 1, 2, 3 and Ethics — each with a detailed model answer, diagrams, flowcharts and structured answer writing.
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What is digital signature? What does its authentication mean? Giver various salient built in features of a digital signature.
GS35 marks2013Science & Technology
Bring out the circumstances in 2005 which forced amendment to section 3(d) in the Indian Patent Law, 1970. Discuss how it has been utilized by Supreme court in its judgment rejecting Novartis patent application for “Glivec”. Discuss briefly the pros and cons of the decision.
GS310 marks2013Science & Technology