India, Jan. 31 -- New Delhi

The controversy over the quality of Yamuna water in the Capital continued to rage on, with Aam Aadmi Party (AAP) national convener Arvind Kejriwal on Thursday daring Bharatiya Janata Party (BJP) and Congress leaders to drink water from the Yamuna or apologise to the people of Delhi for claiming it was not harmful to health.

Holding four bottles of water with labels of Union home minister Amit Shah, Haryana chief minister Nayab Singh Saini, Delhi BJP head Virendra Sachdeva and Congress leader Rahul Gandhi, Kejriwal said he is sending bottles filled with Yamuna water and the four of them must drink them in a press conference to prove him (Kejriwal) wrong.

"This is 7ppm (parts per million) ammonia water with ch...