The 20th ‘Himalayan White Water Challenge’ competition is started in the Trishuli river of Nepal from today till November 29th.The competition is held every year. Shiv Adhikari, president of the Nepal Association.....The 20th ‘Himalayan White Water Challenge’ competition is started in the Trishuli river of Nepal from today till November 29th.The competition is held every year. Shiv Adhikari, president of the Nepal Association.....