You call the Soviet murder machine of Stalin that killed millions upon millions and sent as many to the Gulags, failures???
Do you call the murder of millions more by Mao failures?? What about Pol Pot???
Communism as it stand encourages the worst sloth in the individual and it at the same time makes him/her completely subservient to the state. And by state I mean Russia and China! Indian communists have extra national loyalties as well which is another reason why they are such a failure.