Patna: 350th Prakashotsava of Guru Gobind Singh underway at Gandhi Maidan of Patna on Dec 22, 2016. (Photo: IANS)morePatna: 350th Prakashotsava of Guru Gobind Singh underway at Gandhi Maidan of Patna on Dec 22, 2016. (Photo: IANS)morePatna: 350th Prakashotsava of Guru Gobind Singh underway at Gandhi Maidan of Patna on Dec 22, 2016. (Photo: IANS)morePatna: 350th Prakashotsava of Guru Gobind Singh underway at Gandhi Maidan of Patna on Dec 22, 2016. (Photo: IANS)more