Because these operators are not bound to follow the directives of the Indian government and Blogger(Google), already facing flack for its censorship in China, does not want another PR debacle on its hands.

Also, though they might for once delete such blogs but it does not take long to get a new blog or a discussion group, does it??

Sakshi jee, kya baat kar rahe ho aap.
What about that freedom and liberty that these Leftist and congressi people keep talking about.
Surprisingly, the leftwingers who keep harping on freedom, liberty etc are the very people who are more likely to clamp down on opposing points of view. Did you note that most murderous, autocratic and repressive regimes in the world have been Leftists, and not Rightists. Strange Strange World.