Vijayamma campaigned Sunday night in Prathipadu and Macherla Assembly constituencies where bypolls would be held on June 12 along with other constituencies.
She alleged Jagan was arrested just before the by-elections so as to keep him away from campaigning.
Vijayamma said first she lost her husband Y S Rajsekhara Reddy in helicopter accident and now "ungrateful" Congress had sent her only son to jail.
Andhra Pradesh: YSR Congress's President Y Vijayamma has alleged at an election rally that TDP chief N Chandrababu Naidu and ruling Congress conspired to put her son and Kadapa MP Jaganmohan Reddy in jail.
First Published: Monday, June 04, 2012, 18:51