Shiv Sena president Uddhav Thackeray addressing a press conference at Shiv Sena Bhavan in Mumbai (Press Trust of India photo)

As an array of politicians took their oaths to join the Prime Minister's Council of Ministers, Anil Desai, a Shiv Sena leader who had landed in Delhi was asked to skip the ceremony and immediately catch a flight back to Mumbai.That could have detonated the ending of the Shiv Sena's alliance with the ruling BJP, but at a press conference on Sunday evening, Sena leader Uddhav Thackeray refused to call it. "It is up to the BJP to decide...if they take any support from the NCP, we will not stand with them," he said, referring to Sharad Pawar's party which has offered to back the BJP's minority government in Maharashtra, a move that has greatly diminished the power of the Shiv Sena. ( Shiv Sena Will Sit in Opposition in Maharashtra if BJP Takes NCP's Support:10 Developments On Wednesday, the BJP's Devendra Fadnavis must take a trust vote to determine if he will remain chief minister. "We will not hesitate to vote against them if the BJP and NCP combine," Mr Thackeray threatened, while stating that the Shiv Sena will then serve as the opposition in the state.In a clear sign that he is willing to continue the negotiations that have spanned weeks, Mr Thackeray said he has not yet decided whether his party will exit the PM's coalition government by pulling out its lone minister - Anant Geete."We are not a slave to power," Mr Thackeray said, citing his refusal to accept the BJP's offer on Sunday to induct his party's Anil Desai as a junior minister at the Centre.Mr Thackeray had asked for his party to be added to the Maharashtra government when BJP ministers led by Mr Fadnavis took their oath 10 days ago; that did not happen. His revised deadline - of Shiv Sena ministers being sworn in before the trust vote on Wednesday was also rejected. Then he was told that Mr Desai, who he had nominated for his party's "quota" in the union cabinet, would be ranked as a junior minister.In Maharashtra, the Shiv Sena was informed, it would not get the post of Deputy Chief Minister or an important portfolio like Home or Finance.

The Shiv Sena's 25-year alliance with the BJP ended ahead of the state election over how many seats each side would contest. Mr Thackeray ran a maximally vicious campaign with an embarrassingly clanging result for him. The BJP won its best ever result.