Lucknow, 7 April: Two Lucknow students have secured in the 100th percentile in Science, getting the top rank globally, in the International Benchmark Test (IBT) organised by the Australian Council for Educational Research (ACER). Rudra Mishra and Srishti are both students of Class VIII of City Montessori School, RDSO Campus and have added their names to the illustrious list of students securing in the 100th percentile in a particular subject from all over the world.