Sixteen teams will be vying for the title while the top four teams will qualify for the FIFA U-17 World Cup Peru 2021.
Tajikistan, the 2018 runners-up, were drawn in Group B alongside Oman, Yemen and the United Arab Emirates.
Two-time champions Korea Republic, who finished third in 2018, were drawn in Group C with Australia, India and Uzbekistan.
DPR Korea, winners in 2010 and 2014, will be up against hosts Bahrain, Islamic Republic of Iran and Qatar in Group A.
The AFC U-16 Championship Bahrain 2020 will be played on November 25 to December 12.