New Delhi: India were assured of four medals at the Ulaanbaatar Cup in Mongolia after four boxers, including Sonia Lather (57kg), advanced to the semifinals. Joining her in the Last-4 stage were Lovlina Borgohain (69kg), Himanshu Sharma (49kg) and Ashish (64kg). All the four boxers are guaranteed of at least a bronze medal each. Sarjubala Devi (51kg) bowed out in the quarterfinal stage after losing a close bout to Mongolian Myagmardulam Nandinsetseg 1-4. Sonia defeated local favourite Myagmar Gundegmaa to make the Last-4 stage. Lovlina was equally dominating in her 5-0 win over Thailand’s Suchada Panich. Himanshu defeated Chinese Taipei’s Po Wei Tu in a unanimous verdict. Also advancing with a 5-0 win was Ashish, who put it past South Korea’s Kim Song Yun in a clinical performance. Earlier, Shiva Thapa (60kg), Mandeep Jangra (69kg), Salman Sheikh (52kg) and Etash Khan (56kg) booked their quarters berths.