The Special cell of Delhi police will be naming underworld don Dawood Ibrahim, they said.
Rajasthan Royals players S Sreesanth, Ankit Chavan and Ajeet Chandila along with more than 30 people are likely to be made accused, they said.
Those likely to be named in the charge sheet includes bookies Ramesh Vyas and Tinku Mandi, ex Ranji player Babu Rao, Sreesanth's close aide Jiju Janardhan and Mohammed Yahya, who was picked up when he was fleeing to Dubai.
The charge sheet will be filed under stringent sections of MCOCA and IPC.
Delhi Police Commissioner Neeraj Kumar had earlier expressed his desire that charge sheet in this high profile case be submitted before he retires on July 31.
The three players of Rajasthan Royals along with 11 bookies, were arrested from Mumbai, Ahmedabad and Delhi during the T20-6 in May.
Another 15 people were arrested from different parts of the country later.
Twenty-one accused in the case, including Sreesanth and Chavan, have been granted bail by a court, while the others, including Chandila are in judicial custody.