NEW DELHI: Indian Prime Minister Narendra Modi called for setting up a foolproof public examination system in the country on Tuesday (Jul 21), a day after supporters of the youth-led "cockroach" movement clashed with police as they marched on parliament to protest against question paper leaks. The comments by Modi, reported by a cabinet minister, were his first on the subject since the leaking of question papers for a national entrance test to medical school in May, the anger over which has become the biggest challenge for the prime minister in his third term. Thousands of youngsters marched on parliament on Monday demanding the resignation of Education Minister Dharmendra Pradhan over the leaks that affected more than 2 million students and led to some committing suicide.