BJP MP Tejasvi Surya took part in the Mumbai Marathon on Sunday and called it one of the best marathons in the world. It's amazing to see 60,000 people participating in the marathon, he added. Last year in October, Surya had got PM Narendra Modi's praise for completing Ironman Goa challenge which involved 1.9-km swim, 90-km cycling and 21.1-km run.