Delhi boy Sahal Kaush has cracked the IIT-JEE exam at the age of 14 this year. He has taken admission in an undergraduate course at the IIT institute in Kanpur. Kaushik, who had secured the 33rd rank at all-India level in the IIT-JEE exam this year, has opted for the five-year integrated MSc (Physics) course.There is no age limit for admission into undergraduate courses. A student has to be intermediate pass only. Sahal is the youngest student to take admission in the IIT this year. He completed his class 12 from Vandana International School in Dwarka, Delhi, securing 78 per cent marks.