(From left) Sukhwinder Singh, Salim and Sulaiman Merchant

It's that time of the year when Mumbaikars put on their running shoes and take to the streets as part of the annual Mumbai marathon. While the 15th Mumbai marathon is scheduled for Sunday, January 21, four of Bollywood's brightest musical talents — singer Sukhwinder Singh, lyricist Prasoon Joshi and composer duo Salim-Sulaiman — commenced work on the marathon anthem as early as mid-last year. Taking a cue from the event's tagline, the track is titled Nikal Pado Toh Mumkin Hai.