India's London Olympics Silver Medalist Vijay Kumar will vie for top honours today, when he competes in the Men's 25 metres Rapid Fire Pistol Stage 1 event, at the ongoing ISSF Shooting World Cup at Korea. Besides Vijay Kumar, who is world number two, Harpreet Singh and Pemba Tamang are the other Indian participants in the event.In today's other events, Heena Sidhu, Annu Raj Singh, Malaika Goel and Ruchita Vinerkar will represent India in the Women's 10 metres Air Pistol event; and, Tejaswini Sawant, Lajja Gauswami, Meena Kumari will figure in the Women's 50 metres Rifle 3 positions event.