BJP said the court's decision strengthens its claim that Ajit Pawar continues to be the NCP's legislature party leader.
The two-day Conference of Governors and Lieutenant Governors commenced on Saturday at Rashtrapati Bhavan with the inaugural address of President Ram Nath Kovind.
The three parties demanded an immediate floor test to avoid 'further horse-trading' and filed a petition in the SC seeking quashing of Maharashtra governor's decision to swear-in Fadnavis as CM.
Governor Bhagat Singh Koshyari administered the oath to Fadnavis and Pawar at the Raj Bhavan in Mumbai at around 7.30 am.
Besides MLAs, senior Sena leaders will also take part in the meeting which is expected is discuss the current political situation in Maharashtra.
Congress leader Randeep Singh Surjewala said the President's Rule was 'a joke with democracy' and was an ill deed against the established traditions of the Constitution.
Maharashtra Governor Bhagat Singh Koshyari had invited the NCP to express its intent and ability to form the government in the state within 24 hours when they visited Raj Bhavan at 8.30 pm on Monday.
Aaditya Thackeray had on Monday said that governor was told that his party was willing to stake a claim but its two potential allies needed time to complete the formalities for extending support.
Governor Bhagat Singh Koshyari on Saturday evening asked the BJP, the single largest party in the new Assembly, to "indicate the willingness and ability" to form the government.
The term of the 13th Assembly is set to end on Saturday midnight, but no indication has emerged from bickering allies BJP and Shiv Sena that they were ready to form the new government.
Union minister Ramdas Athawale on Friday met Pawar "to seek his advice" on ending the deadlock over government formation in Maharashtra.
The situation has particularly become grim with the normal tenure of the assembly scheduled to expire on November 8.
Maharashtra CM Devendra Fadnavis met the governor around 11 am, while a delegation of Shiv Sena leaders, led by Diwakar Raote, met him at Raj Bhawan at 10.30 am.
Later, when Sasikala was found guilty by the Supreme Court, Rao said that he was constitutionally aligned in waiting for the judgement.
Party State unit chief K laxman stated that Vidyasagar Rao’s return to politics would help in strengthening the party in the State.