Even two months after the AAP won the civic body polls, the Municipal Corporation of Delhi (MCD) failed to elect its Mayor for the third time on Monday after a ruckus erupted over the Aldermen (nominated members) being allowed to vote in the election to the post.

As the MCD House proceedings adjourned without electing a Mayor, the AAP, alleged a "planned conspiracy" by the BJP to stall the process and said it would move the Supreme Court to seek a "court-monitored" election.

The House has witnessed unprecedented developments since January 6, when it had convened for the first time after the high-stakes civic polls and adjourned in vain following acrimonious exchanges between members of the BJP and the AAP.

As the ruckus erupted, presiding officer Satya Sharma adjourned the House saying, “Election cannot be held in such an atmosphere. The House is adjourned until the next date.”

Both the BJP and AAP have accused each other of preventing the mayoral polls, with the bone of contention being the appointment of Aldermen and their voting right in the House.

Earlier, soon after the MCD House assembled around 11:30 AM, after a delay of half an hour, Sharma announced that Aldermen will be allowed to vote in elections to the posts of Mayor, Deputy Mayor and Standing Committee members which will be held simultaneously. Sharma cited the 2016 High Court ruling in North Delhi Municipal Corporation Vs Onika Mehrotra case for the direction.

No sooner had she made the announcements, it drew protests from AAP Councillors. Veteran politician and party's Leader in the House, Mukesh Goel, stood up from his seat, and said Aldermen can't vote, and even stepped into the Well of the House to hand over a document to Sharma.  As the chorus of protest grew, BJP Councillors started raising slogans and asked AAP members to not prevent the mayoral poll.

After the din reduced, the presiding officer said AAP Councillors Akhilesh Tripathi and Sanjeev Jha should not be allowed to vote because they have corruption allegations against them, drawing a sharp reaction from the AAP Councillors. BJP Councillors then started protesting, demanding the removal of Tripathi and Jha from the House. The MLAs in the House are among the 14 AAP legislators nominated by the Delhi Assembly Speaker to the MCD in December. As the commotion grew, the presiding officer announced that "the House stands adjourned till the next date".

AAP leaders and Councillors sat, rather stoically in the seats, as BJP members walked out of the House's chamber named after the first Mayor of Delhi -- Aruna Asaf Ali. AAP Mayoral candidate Shelly Oberoi rued: "This was the third time the House meeting was held and here we are again without the Mayor. The intention of the BJP was clear from the very beginning. Everything that was held in the House was unconstitutional. "

Later at a press conference held at the Civic Centre -- the towering MCD headquarters in the heart of Delhi -- AAP Rajya Sabha MP Sanjay Singh, party MLA Atishi and AAP's MCD in-charge Durgesh Pathak tore into the BJP, saying they have decided to go to the Supreme Court seeking a time-bound and court-monitored election for Delhi Mayor.

"Today, through the media, people have seen what is being done... It is clear that the presiding officer is working on the directions of the BJP, and there is a planned conspiracy to not let the mayoral election take place," Singh said.

The standoff between the BJP and AAP had stalled the election process during the earlier two sessions of the municipal House on January 6 and 24.

The AAP had emerged as a clear winner in the December 4 polls, bagging 134 wards and ending the BJP's 15-year rule in the civic body. The BJP won 104 wards to finish second, while the Congress won nine seats in the 250-member municipal House.