If BJP has won majority in Karnataka then why the hell are they falling at Deve Gouda's feet? Mr. Ignorant Nagraj, a party that wins majority, forms a govt on its own and not with somebody's support. That's a classic piece of un-udulterated ignorance!
Now the real reason - BJP will not withdraw support because it cannot get majority in Karnataka. In recent local body polls, BJP finished third! That the reality & hence the wise gesture of not withdrawing support.
