In Bhopal, semi final bouts will be played in the 12th Senior National Women Boxing Championships today. AIR correspondent reports in all 20 bouts in 10 different categories will be played in a single day.Five times World Champion M C Mary Kom will take on Dolly Singh of West Bengal.Marry Kom thrashed P Nirosha of Andhra Pradesh 17-0 in her quarter final on Friday.Former World Champion L Sarita Devi of All India Police will face Pinki Jangra of Haryana in the semifinal.World Youth Champion Sarjubala Devi will meet Mamta of Haryana. Final bouts will be played tomorrow.