I.N.D.I.A Alliance Meeting: Tension high in Mumbai

Today in Mumbai I.N.D.I.A. There will be an important meeting of the alliance. I.N.D.I.A. 28 opposition parties can attend the meeting. Will the alliance between the opposition parties be able to agree on the name of the post of PM? If the alliance enters the fray without a face, then what will be the seat formula?