Citing Delhi elections, Gandhi said despite best efforts, she could not prepare the reply to the present complaint within the timeframe.
In her submission filed through her lawyer, Gandhi said she was in the process of seeking legal advice and preparing appropriate response to be filed before the Commission which is expected to be ready within four weeks.
"The request for extension of time has been necessitated by reasons beyond the respondents' control. The application is made bona fide and in the interest of justice," her lawyer said in the submission before the Commission.
Similar notices were issued by the CIC in separate cases to BJP as well but its chief Amit Shah has also not responded.
A full bench of CIC had declared that Congress and five other national parties -- BJP, CPI, CPI-M, NCP and BSP -- are public authorities which are answerable under the RTI Act, but none of the parties either set up any mechanism to respond to such queries nor alter law or challenge the order in any high court.