In a memorandum to Mukherjee, Vijaya alleged that there was a "systematic vilification campaign" by the CBI against her son after he launched a new party.
The memorandum also levelled allegations against a CBI officer in-charge of investigation into the case.
Jagan was arrested on May 27 by CBI in the case and is in jail ever since.
"I enclose a detailed note on the case against Mr YS Jaganmohan Reddy and request your kind intervention in the matter," Vijaya said.
New Delhi: YSR Congress honorary president YS Vijaya on Monday sought President Pranab Mukherjee's intervention in the disproportionate case against her son YS Jaganmohan Reddy alleging that he has been "framed" by the Congress.
First Published: Monday, October 08, 2012, 21:06