Arvind Kejriwal defended his statement about ‘poison in Yamuna’ and criticized Haryana CM Nayab Singh Saini’s threat of legal action. Kejriwal cited confirmation from the Delhi Jal Board that Yamuna waters contained harmful levels of ammonia, despite the board calling his claims misleading.Arvind Kejriwal defended his statement about ‘poison in Yamuna’ and criticized Haryana CM Nayab Singh Saini’s threat of legal action. Kejriwal cited confirmation from the Delhi Jal Board that Yamuna waters contained harmful levels of ammonia, despite the board calling his claims misleading.