"The Assembly has been dissolved. The petition is disposed of," a five-judge Constitution bench headed by Chief Justice H L Dattu said.
The court did not allow the submission of Prashant Bhushan, counsel for AAP, that the Election Commission be asked to announce the poll schedule at the earliest.
"The Election Commission will now take over. We can't direct this," the bench, also comprising justices J Chelameswar, A K Sikri, R K Agrawal and Arun Mishra, said.
It had asked AAP, which said that there was no possibility of government formation, to wait till today and had observed that there could be a minority government with an outside support of some political outfit and, hence the LG be given some time.
The Centre had told the court that the President has given his consent to the LG's proposal to invite BJP to form government.
BJP had emerged the single largest party after the Assembly polls in December last year with 31 seats apart from the support of ally Akali Dal's one MLA in the 70-member House. But its numbers had come down to 28 after three of its legislators--Harsh Vardhan, Ramesh Bidhuri and Pervesh Verma--were elected to Lok Sabha.
AAP with 28 MLAs had formed the government with the support of eight Congress MLAs. AAP's strength had also come down to 27 after expulsion of party MLA Vinod Kumar Binny.
The UPA government had imposed President's rule in Delhi after Arvind Kejriwal along with his Council of Ministers resigned on February 14.
