"What is the specific allegation? I can't answer vague allegations without any basis," Jaitley told the media here.
Alleging financial irregularities in the Delhi and District Cricket Association which Jaitley once headed, the Congress demanded a Joint Parliamentary Committee probe.
It asked Jaitley to resign as minister till a probe into the DDCA was completed.
The AAP also asked Jaitley to quit, saying the CBI raided the Delhi Secretariat on Tuesday to derail a probe by the Delhi government into the DDCA.