It seems that the Report of the Twentieth Congress, especially the Secret Report, is the source of the inspiration of Sarojbabu. It does not seem that Khrushchev has given that opportunity anywhere. As the Soviet Union was regarded as the holy site of socialism instead of being a place of experimentation the Soviet leadership was also regarded as being beyond question and doubt. If any Marxist intellectual who has no contact with reality were to spin such a tale then it would be a different matter. But Sarojbabu should remember that the true Marxists who are trying to gradually realize Marxism with their blood do not live in an utopia.
Truth is above such efforts and is created through historical dialectics.
In the ever-changing world whatever is regarded as true at any particular moment may be proved to be false at the next. The true Marxists acknowledge this and attempt to find the complexity in all the events and try to cognise it. Every Marxist who had not lost touch with reality knew that the Soviet Union was no Garden of Eden. Freed from the centuries-old yoke of feudalism and undergoing a very short period of capitalist rule, Soviet society was not very highly developed. When the socialist revolution succeeded there due to historical reasons the primary task of every Marxist was to firmly establish socialism and to defeat its enemies.