The formation of BJP-JD(S) Govt is still not a certainity, given the fact that the Congress are past masters at playing spoil sport (all in the interest of upholding the Indian Constitution!!!!!!!!!).
The Congress has already started talking of dissolving the assembly and going in for fresh elections. They term this alliance as unholy. All because they are not a part of the alliance. The alliance would have been more than holy if only the Congress was a part of it instaed of the BJP!!!
The Congress will go to any extent to deny the BJP a right to form their first Govt in South India. But the Congress should realise that if they do not allow the BJP now, they will once again gift a lot of public sympathy to the BJP. So if the elections are held now, it is possible that the BJP will benefit maximum.