Lokayukta Police got the sanction to prosecute Arvind and Tinoo Joshi, yesterday.
The Joshis are facing cases for disproportionate assets under the Prevention of Corruption Act and Indian Penal Code.
Lokayukta sources said here today that Joshis will be now chargesheeted.
They said that besides them, 15 others including Arvind's father H M Joshi, mother Namrata Joshi, associate S P Kohli, Delhi-based stamp vendor Raj Rani, insurance agent Seema Jaiswal would be chargesheeted.
Both Arvind and Tinoo are 1979 batch IAS officers of the state cadre. Income Tax Department raided their official residence in Bhopal in February 2010, leading to discovery of disproportionate assets.