Fifty-one days. 17,000 kilometres. 28 states. 6 union territories. Innumerable stops throughout rural India. One car and a 10-year-old companion. The numbers in Dr Mitra Satheesh’s travel diary are undoubtedly impressive but it’s the effort, thorough planning and determination underlining the journey that is more laudable. A true hodophile, the Kerala-born Dr Mitra believes in travelling with a purpose –…