Indian para-athlete Amit Kumar bagged a silver in men's club throw F51 event to give the country its second medal in the IPC Athletics World Championships in Doha on Thursday.Amit clinched silver with an effort of 25.44m, behind Serbia's Zeljko Dimitrijevic who won gold in a championship record of 26.29m.With Amit's medal today, the 15-member Indian team ended the campaign with two silver.Devendra Jhajharia had won a silver in men's javelin throw F46 event on Tuesday.