"This is really quite absurd and very strange because they have completely changed the essence of the accusation," he added.
Navalny rose to prominence by highlighting corruption at state-controlled companies on his blog, energising Russia's burgeoning internet-savvy generation in the process. In the run-up to parliamentary elections in December last year, he was a key figure in organising demonstrations against Putin's United Russia party.
After Putin's victory in a presidential election in March, and amid allegations of electoral fraud, attendance at some rallies reached more than 100,000.
The former deputy prime minister Boris Nemstov, another prominent Putin opponent, yesterday accused the Government of falsifying the charges against Navalny. "This case has been fabricated from beginning to end," he said. "The true reason for what is happening is Putin's mortal fear of losing power ... He is wildly afraid of the opposition, including Navalny."
The case against Navalny was announced as the trial of an all-female punk band facing charges of hooliganism for performing an anti-Putin protest entered its second day yesterday.
Three members of the band Pussy Riot - Maria Alyokhina, 24, Nadezhda Tolokonnikova, 22, and Yekaterina Samutsevich, 29, - face up to seven years in prison for an unsanctioned protest performance at the altar of Russia's main cathedral, where they called on the Virgin Mary to "throw Putin out!"
- Independent