New Delhi, Jan. 31 -- AAP Convenor Arvind Kejriwal in a letter to the Election Commission raised serious allegations against Haryana Chief Minister Nayab Singh Saini on Friday.

He sent a written response to the Election Commission, demanding that a criminal case be filed against Nayab Singh Saini regarding the 'poisonous' Yamuna issue.

Kejriwal claimed that the levels of ammonia contamination in the raw water being supplied to Delhi from Haryana were 'unprecedented and dangerously' high.

In the letter, he claimed that the ammonia levels started increasing very sharply from 15 Jan onwards (around 3.2 ppm on 15 Jan) and reached 7 ppm a few days later.

The AAP convenor stated that CM Atishi contacted the Haryana CM to resolve the crises;...