India, Jan. 17 -- Up for a challenge? Love torun?Well tighten your boots and start preparing for these upcoming marathons. But before you start planning, be ready to experience new levels of difficulty and danger

1. Tata Mumbai Marathon One of Asia's largest and most popular runs, the seventeenth edition of Tata Mumbai Marathon is scheduled to take place on Sunday, January 19, at a starting race fee of INR 1,400. Considered to be among the top 10 marathons in the world, this INR 2.8 crore event is divided into six race categories-Full Marathon (42.195 km), Half Marathon (21.097 km), Dream Run (6.6 km), Senior Citizens Race (4.7 km), Champions with Disability category (2.1 km) and Open 10K run. Every year, the race welcomes the active pa...