Khushi Tiwari, 17, from Rajasthan's Karauli district, and a coaching student of Kota's Allen Career Institute, was ranked second in India in the retest for AIPMT Examination, results for which were declared by the Central Board of Secondary Education (CBSE) on Monday. She scored 688 marks out of a maximum of 720. Another student from the state, Nayan Gupta, 18, of Alwar bagged the 5th position in the test. Daughter of dentist parents, Khushi was ranked 129 in the AIIMS exams held earlier this y