The defendants, who include three Uzbek citizens, were charged with organizing a criminal group, terrorism, and other crimes.
The presiding judge, Mahmud Ashurov, said the defendants could face up to 20 years in prison if found guilty.
All seven were detained in July.
(Asia-Plus, ITAR-TASS)
RFE/RL Central Asia Report
SUBSCRIBE For regular news and analysis on all five Central Asian countries by e-mail, subscribe to "RFE/RL Central Asia Report."