Delhi Chief Minister Arvind Kejriwal has been summoned by the Enforcement Directorate for an eighth time, sources told NDTV.

The Aam Aadmi Party boss has been called to join the central agency's probe into the Delhi liquor excise policy scam on March 4.

Mr Kejriwal skipped the seven earlier summons - the first of which was served on November 2 - each time claiming the ED's calls are "illegal" and reflect the ruling Bharatiya Janata Party's plan to arrest the Delhi Chief Minister and scuttle the AAP's chances in a general election now just weeks away.

The AAP leader skipped the seventh call on Monday, with his party demanding the agency respect the legal process and await the decision of the Delhi court hearing a complaint filed by the ED itself.

The special court, which hears cases related to money laundering, is due to hear from Mr Kejriwal on March 16. He will have to explain why he snubbed seven (and now most likely eight) summons.

The ED, sources said, is still issuing summons as the court did not stop them. The more summons he ignores, the more Mr Kejriwal risks becoming the first sitting Chief Minister to be arrested.

Mr Kejriwal was questioned by the Central Bureau of Investigation in this case in April. "CBI asked 56 questions (but) everything is fake. Convinced they don't have a single piece of evidence," he had said.

However, two senior AAP members, including ex-Deputy Chief Minister Manish Sisodia, have been arrested. Mr Sisodia was arrested in February last year and Rajya Sabha MP Sanjay Singh in October.