Ahamed Shahabath N was in school when he tasted a shawarma for the first time. “It cost ₹50 a piece and a friend and I pooled in ₹25 each and shared it.” Today, Ahamed, along with friends and now business partners Yasar Arafath M, and Jansa Mohammed K, runs his own chain of mobile shawarma trucks and outlets in Coimbatore. …