Come May, Indian homes come alive with the buzz of summer vacations. Schools are shut, bags are packed, and the road beckons. For many of us, this also brings back the memory of homemade meals carried in dabbas--steaming theplas, fragrant tamarind rice, or crunchy chivda packed by mothers and grandmothers with love and foresight. Before apps delivered food and malls served samosas, travel meals...